Perhaps you should try some spelling variations:
"supply social integration theories." » "supply social integration theory.", "supply social integration through.", "supply social integration efforts.", "supply global integration theories.", "supply financial integration theories.", "supply regional integration theories."
"supply how integrating policies." » "supply how international policies.", "supply how integrating countries.", "supply how immigration policies.", "supply now integrating policies.", "supply shadow integrating policies.", "supply _ integrating policies.", "supply shock integrating policies."

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

• Performing a fuzzy search may retrieve terms with similar spellings: (("supply social integration theories.") or ("supply how integrating policies."))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (("supply social integration theories.") OR ("supply how integrating policies."))*.
• Removing quotes may allow a broader search: (( supply social integration theories. ) or ( supply how integrating policies. ))*.