Perhaps you should try some spelling variations:
"supply asian integration theories." » "supply asian integration theorems.", "supply asian integrationstheorie 2.", "supply asian integration theory.", "supply urban integration theories.", "supply american integration theories.", "supply spatial integration theories.", "supply asia integration theories.", "supply design integration theories.", "supply ann integration theories."
"supply marine conservation efforts." » "supply nature conservation efforts.", "supply land conservation efforts.", "supply heritage conservation efforts.", "supply main conservation efforts.", "supply ukraine conservation efforts.", "supply market conservation efforts."

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 asian integration theories.") or ("supply marine conservation efforts."))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (("supply asian integration theories.") OR ("supply marine conservation efforts.")).
• Removing quotes may allow a broader search: (( supply asian integration theories. ) or ( supply marine conservation efforts. )).
• Adding a wildcard symbol may retrieve word variants: (("supply asian integration theories.") or ("supply marine conservation efforts."))*.