Perhaps you should try some spelling variations:
"import trade integration policies." » "import trade immigration policies.", "import trade international policies.", "import trade migration policies.", "export trade integration policies.", "import price integration policies.", "import taxes integration policies."
"support fare integration theories." » "support fare integration theorems.", "support fare integrationstheorie 2.", "support fare integration theory.", "support die integration theories.", "support farm integration theories.", "support farmers integration theories.", "support future integration theories."

Try widening your search to All Fields.

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

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