Perhaps you should try some spelling variations:
"support distorts integration efforts." » "support historical integration efforts.", "support platforms integration efforts.", "support systems integration efforts.", "support distorts international efforts.", "support distorts conservation efforts.", "support efforts integration efforts."
"import water irrigation schemes." » "import water irrigation scheme.", "import water irrigation systems.", "import scale irrigation schemes.", "import canal irrigation schemes.", "import farm irrigation schemes.", "imported water irrigation schemes.", "import rates irrigation schemes.", "support water irrigation schemes."

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

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