Perhaps you should try some spelling variations:
"support global integration theories." » "support global integration theory.", "support global integration through.", "support global integration reforms.", "support regional integration theories.", "supporting local integration theories."
"support from integration efforts." » "support from international efforts.", "support from conservation efforts.", "support grid integration efforts.", "support fare integration efforts.", "support tool integration efforts."

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

• Performing a fuzzy search may retrieve terms with similar spellings: (("support from integration efforts.") or ("support global integration theories."))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (("support from integration efforts.") OR ("support global integration theories.")).
• Removing quotes may allow a broader search: (( support from integration efforts. ) or ( support global integration theories. )).
• Adding a wildcard symbol may retrieve word variants: (("support from integration efforts.") or ("support global integration theories."))*.