Perhaps you should try some spelling variations:
"supply china integration policies." » "supply china immigration policies.", "supply china international policies.", "supply china migration policies.", "supply china's integration policies.", "supply chain integration policies.", "supply china integrating policies.", "supply chains integration policies."
"supply sector integration series." » "supply social integration series.", "supply sector integration theories.", "supply sector integrating services.", "supply sector integration schemes."

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

• Performing a fuzzy search may retrieve terms with similar spellings: (("supply china integration policies.") or ("supply sector integration series."))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (("supply china integration policies.") OR ("supply sector integration series."))*.
• Removing quotes may allow a broader search: (( supply china integration policies. ) or ( supply sector integration series. ))*.