Perhaps you should try some spelling variations:
"ʻusfuri, khalaf ibn khayyat, -854. tarikh khalifa's ibn khayyat." » "ʻusfuri, khalaf ibn khayyat, -854. tarikh khalij ibn khayyat." (Expand Search), "ʻusfuri, khalaf ibn khayyat, -854. tarikh khalij's ibn khayyat." (Expand Search), "ʻusfuri, khalaf ibn khayyat, -854. tarikh khalifah ibn khayyat." (Expand Search), "ʻusfuri, khalil ibn khayyat, -854. tarikh khalifa's ibn khayyat." (Expand Search), "ʻusfuri, khalifah ibn khayyat, -854. tarikh khalifa's ibn khayyat." (Expand Search)
"ʻusfuri, khalaf ibn khayyat, -854. tarikh khalifa's life khayyat." » "ʻusfuri, khalaf ibn khayyat, -854. tarikh khalij life khayyat." (Expand Search), "ʻusfuri, khalaf ibn khayyat, -854. tarikh khalij's life khayyat." (Expand Search), "ʻusfuri, khalil ibn khayyat, -854. tarikh khalifa's life khayyat." (Expand Search), "ʻusfuri, khalifah ibn khayyat, -854. tarikh khalifa's life khayyat." (Expand Search)
"ʻusfuri, khalaf ibn khayyat, -854. tarikh khalifah's ibn khayyat." » "ʻusfuri, khalaf ibn khayyat, -854. tarikh khalifah ibn khayyat." (Expand Search), "ʻusfuri, khalaf ibn khayyat, -854. tarikh khalijh's ibn khayyat." (Expand Search), "ʻusfuri, khalil ibn khayyat, -854. tarikh khalifah's ibn khayyat." (Expand Search), "ʻusfuri, khalifah ibn khayyat, -854. tarikh khalifah's ibn khayyat." (Expand Search)
"ʻusfuri, khalid ibn hayyan, -854. tarikh khalifa ibn hayyan." » "ʻusfuri, khalid ibn hayyan, -854. tarikh khalij ibn hayyan." (Expand Search), "ʻusfuri, khalid ibn hayyan, -854. tarikh khalifah ibn hayyan." (Expand Search), "ʻusfuri, khalid ibn hayyan, -854. tarikh khalil ibn hayyan." (Expand Search), "ʻusfuri, khalid ibn hayyan, -854. tarikh khalifa born hayyan." (Expand Search), "ʻusfuri, khalil ibn hayyan, -854. tarikh khalifa ibn hayyan." (Expand Search), "ʻusfuri, walid ibn hayyan, -854. tarikh khalifa ibn hayyan." (Expand Search), "ʻusfuri, khalid abu hayyan, -854. tarikh khalifa abu hayyan." (Expand Search)

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: (((((("ʻusfuri, khalaf ibn khayyat, -854. tarikh khalifa's ibn khayyat.") OR ("ʻusfuri, khalaf ibn khayyat, -854. tarikh khalifah's ibn khayyat."))) or ("ʻusfuri, khalaf ibn khayyat, -854. tarikh khalifa's life khayyat."))) or ("ʻusfuri, khalid ibn hayyan, -854. tarikh khalifa ibn hayyan."))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((((("ʻusfuri, khalaf ibn khayyat, -854. tarikh khalifa's ibn khayyat.") OR ("ʻusfuri, khalaf ibn khayyat, -854. tarikh khalifah's ibn khayyat."))) OR ("ʻusfuri, khalaf ibn khayyat, -854. tarikh khalifa's life khayyat."))) OR ("ʻusfuri, khalid ibn hayyan, -854. tarikh khalifa ibn hayyan.")).
• The words AND, OR and NOT may confuse the search; try adding quotes: "((((((\"ʻusfuri, khalaf ibn khayyat, -854. tarikh khalifa's ibn khayyat.\") OR (\"ʻusfuri, khalaf ibn khayyat, -854. tarikh khalifah's ibn khayyat.\"))) or (\"ʻusfuri, khalaf ibn khayyat, -854. tarikh khalifa's life khayyat.\"))) or (\"ʻusfuri, khalid ibn hayyan, -854. tarikh khalifa ibn hayyan.\"))".
• Removing quotes may allow a broader search: (((((( ʻusfuri, khalaf ibn khayyat, -854. tarikh khalifa's ibn khayyat. ) OR ( ʻusfuri, khalaf ibn khayyat, -854. tarikh khalifah's ibn khayyat. ))) or ( ʻusfuri, khalaf ibn khayyat, -854. tarikh khalifa's life khayyat. ))) or ( ʻusfuri, khalid ibn hayyan, -854. tarikh khalifa ibn hayyan. )).
• Adding a wildcard symbol may retrieve word variants: (((((("ʻusfuri, khalaf ibn khayyat, -854. tarikh khalifa's ibn khayyat.") OR ("ʻusfuri, khalaf ibn khayyat, -854. tarikh khalifah's ibn khayyat."))) or ("ʻusfuri, khalaf ibn khayyat, -854. tarikh khalifa's life khayyat."))) or ("ʻusfuri, khalid ibn hayyan, -854. tarikh khalifa ibn hayyan."))*.