Perhaps you should try some spelling variations:
"supply tool integration schemes." » "supply tool irrigation schemes.", "supply tool integration some.", "supply tool integration theories.", "supply global integration schemes.", "supply social integration schemes.", "supply trade integration schemes.", "supply school integration schemes.", "support tool integration schemes."
"survey sector integration series." » "survey social integration series.", "survey sector integration theories.", "survey sector integrating services.", "survey sector integration social.", "supply sector integration series.", "survey second 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: (("survey sector integration series.") or ("supply tool integration schemes."))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (("survey sector integration series.") OR ("supply tool integration schemes."))*.
• Removing quotes may allow a broader search: (( survey sector integration series. ) or ( supply tool integration schemes. ))*.