Perhaps you should try some spelling variations:
"import values integration schemes." » "import values integration schengen.", "import values irrigation schemes.", "import values integration regimes.", "import value integrating schemes.", "import values immigration schemes.", "import verses integration schemes.", "import value integration schemes.", "export value integration schemes.", "import taxes integration schemes."
"supply guided information theory." » "supply guide information theory.", "supply added information theory.", "supply coded information theory.", "supply side information theory.", "supply sides information theory."

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

• Performing a fuzzy search may retrieve terms with similar spellings: (("import values integration schemes.") or ("supply guided information theory."))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (("import values integration schemes.") OR ("supply guided information theory.")).
• Removing quotes may allow a broader search: (( import values integration schemes. ) or ( supply guided information theory. )).
• Adding a wildcard symbol may retrieve word variants: (("import values integration schemes.") or ("supply guided information theory."))*.