Perhaps you should try some spelling variations:
"wave asian studies." » "wave urban studies.", "have asian studies.", "wage asian studies."
"pre migration studies." » "die migration studies.", "trade migration studies.", "male migration studies.", "pdie migration studies.", "p1 migration studies.", "p12 migration studies."
"re migration studies." » "die migration studies.", "1 migration studies.", "12 migration studies."

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

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