Perhaps you should try some spelling variations:
"support from integration theories." » "support from integration theory.", "support from integration through.", "support from integration efforts.", "support grid integration theories.", "support tool integration theories.", "support from immigration theories."
"supply fare integration series." » "supply fare integrating services.", "supply fare integration schemes.", "supply fare integration social.", "supply market integration series.", "supply trade integration series.", "supply data integration series.", "supply farm integration series.", "supply case integration series."

Try widening your search to All Fields.

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• Performing a fuzzy search may retrieve terms with similar spellings: (("supply fare integration series.") or ("support from integration theories."))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (("supply fare integration series.") OR ("support from integration theories.")).
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