Perhaps you should try some spelling variations:
"female migration studies." » "climate migration studies.", "average migration studies.", "female education studies.", "femass migration studies.", "fea migration studies.", "feaid migration studies."
"male migration studies." » "mass migration studies.", "a migration studies.", "aid migration studies."
"yale asian studies." » "yale urban studies.", "wave asian studies."

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

• Performing a fuzzy search may retrieve terms with similar spellings: (("yale asian studies.") or ((("male migration studies.") OR ("female migration studies."))))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (("yale asian studies.") OR ((("male migration studies.") OR ("female migration studies.")))).
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"yale asian studies.\") or (((\"male migration studies.\") OR (\"female migration studies.\"))))".
• Removing quotes may allow a broader search: (( yale asian studies. ) or ((( male migration studies. ) OR ( female migration studies. )))).
• Adding a wildcard symbol may retrieve word variants: (("yale asian studies.") or ((("male migration studies.") OR ("female migration studies."))))*.