Perhaps you should try some spelling variations:
"central action research project based." » "central national research project based.", "central station research project based.", "central region research project based.", "central allocation research project based.", "central action research projects based."
"central asian research project based." » "central basic research project based.", "central urban research project based.", "central aids research project based.", "central asia research project based.", "central american research project based.", "central asian research projects based."

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

• Performing a fuzzy search may retrieve terms with similar spellings: (("central asian research project based.") OR ("central action research project based."))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"central asian research project based.\") OR (\"central action research project based.\"))".
• Removing quotes may allow a broader search: (( central asian research project based. ) OR ( central action research project based. )).
• Adding a wildcard symbol may retrieve word variants: (("central asian research project based.") OR ("central action research project based."))*.