Perhaps you should try some spelling variations:
"import trade integrating policies." » "import trade integration policies.", "import trade integrated policies.", "import trade integrating positive.", "import true integrating policies.", "import drama integrating policies.", "export trade integrating policies.", "import price integrating policies.", "import taxes integrating policies."
"support fare integration theorems." » "support fare integration theories.", "support fare integration theory.", "support fare integrationstheorie 2.", "support trade integration theorems.", "support die integration theorems.", "support farm integration theorems.", "support farmers integration theorems.", "support future integration theorems."

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