Perhaps you should try some spelling variations:
"support strategy interaction term." » "support strategic interactions term.", "support state interactions term.", "support trade interaction term.", "support strategy interaction _."
"support fare integration series." » "support fare integration theories.", "support fare integrating services.", "support fare integration schemes.", "support market integration series.", "support trade integration series.", "support data integration series.", "support falls integration series.", "support state integration series."

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

• Performing a fuzzy search may retrieve terms with similar spellings: (("support fare integration series.") OR ("support strategy interaction term."))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"support fare integration series.\") OR (\"support strategy interaction term.\"))".
• Removing quotes may allow a broader search: (( support fare integration series. ) OR ( support strategy interaction term. )).
• Adding a wildcard symbol may retrieve word variants: (("support fare integration series.") OR ("support strategy interaction term."))*.