Perhaps you should try some spelling variations:
"ʻusfuri, khalifah ibn khayyat, -854. tarikh khalifa's ibn khayyat." » "ʻusfuri, khalifah ibn khayyat, -854. tarikh khalifa ibn khayyat." (Expand Search), "ʻusfuri, khalifah ibn khayyat, -854. tarikh khalifa's life khayyat." (Expand Search), "ʻusfuri, khalaf ibn khayyat, -854. tarikh khalifa's ibn khayyat." (Expand Search), "ʻusfuri, khalifah al khayyat, -854. tarikh khalifa's ibn khayyat." (Expand Search)
"ʻusfuri, khalil ibn hayyan, -854. tarikh khalid ibn hayyan." » "ʻusfuri, khalil ibn hayyan, -854. tarikh halab ibn hayyan." (Expand Search), "ʻusfuri, khalil abu hayyan, -854. tarikh khalid abu hayyan." (Expand Search), "ʻusfuri, khalil ibn hayyan, -854. tarikh walid ibn hayyan." (Expand Search)
"ʻusfuri, khalifah ibn hayyan, -854. tarikh khalij's ibn hayyan." » "ʻusfuri, khalaf ibn hayyan, -854. tarikh khalij's ibn hayyan." (Expand Search), "ʻusfuri, khalifah al hayyan, -854. tarikh khalij's ibn hayyan." (Expand Search), "ʻusfuri, khalifah ibn hayyan, -854. tarikh khalifa ibn hayyan." (Expand Search), "ʻusfuri, khalifah abu hayyan, -854. tarikh khalij's abu hayyan." (Expand Search)
"ʻusfuri, khalifah ibn khayyat, -854. tarikh khalifah ibn khayyat." » "ʻusfuri, khalaf ibn khayyat, -854. tarikh khalaf ibn khayyat." (Expand Search), "ʻusfuri, khalifah al khayyat, -854. tarikh khalifah al khayyat." (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, khalifah ibn khayyat, -854. tarikh khalifa's ibn khayyat.") or ((("ʻusfuri, khalifah ibn hayyan, -854. tarikh khalij's ibn hayyan.") or ("ʻusfuri, khalil ibn hayyan, -854. tarikh khalid ibn hayyan."))))) or ("ʻusfuri, khalifah ibn khayyat, -854. tarikh khalifah ibn khayyat."))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("ʻusfuri, khalifah ibn khayyat, -854. tarikh khalifa's ibn khayyat.") OR ((("ʻusfuri, khalifah ibn hayyan, -854. tarikh khalij's ibn hayyan.") OR ("ʻusfuri, khalil ibn hayyan, -854. tarikh khalid ibn hayyan."))))) OR ("ʻusfuri, khalifah ibn khayyat, -854. tarikh khalifah ibn khayyat.")).
• Removing quotes may allow a broader search: (((( ʻusfuri, khalifah ibn khayyat, -854. tarikh khalifa's ibn khayyat. ) or ((( ʻusfuri, khalifah ibn hayyan, -854. tarikh khalij's ibn hayyan. ) or ( ʻusfuri, khalil ibn hayyan, -854. tarikh khalid ibn hayyan. ))))) or ( ʻusfuri, khalifah ibn khayyat, -854. tarikh khalifah ibn khayyat. )).
• Adding a wildcard symbol may retrieve word variants: (((("ʻusfuri, khalifah ibn khayyat, -854. tarikh khalifa's ibn khayyat.") or ((("ʻusfuri, khalifah ibn hayyan, -854. tarikh khalij's ibn hayyan.") or ("ʻusfuri, khalil ibn hayyan, -854. tarikh khalid ibn hayyan."))))) or ("ʻusfuri, khalifah ibn khayyat, -854. tarikh khalifah ibn khayyat."))*.

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