Perhaps you should try some spelling variations:
"supply costs international politics." » "supply costs international political.", "supply costs international policy.", "supply costs international economics.", "supply costea international politics.", "supply counts international politics.", "supply cases international politics."
"supply china integrating positive." » "supply china integrating policies.", "supply china integrating reproductive.", "supply china integration positive.", "supply chennai integrating positive.", "supply change integrating positive.", "supply chains integrating positive.", "supply chain integrating positive."

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: (("supply china integrating positive.") or ("supply costs international politics."))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (("supply china integrating positive.") OR ("supply costs international politics.")).
• Removing quotes may allow a broader search: (( supply china integrating positive. ) or ( supply costs international politics. )).
• Adding a wildcard symbol may retrieve word variants: (("supply china integrating positive.") or ("supply costs international politics."))*.