Perhaps you should try some spelling variations:
"central basic research program success." » "central basic research programs success.", "central basic research project success.", "central bank research program success.", "central asia research program success.", "central banks research program success."
"central cgiar research program stress." » "central cgiar research programs stress.", "central cgiar research project stress.", "central climate research program stress.", "central cgiar research program synthesis.", "central asia research program stress.", "central asian research program stress.", "central city research program stress."

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

• Performing a fuzzy search may retrieve terms with similar spellings: (("central basic research program success.") or ("central cgiar research program stress."))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (("central basic research program success.") OR ("central cgiar research program stress.")).
• Removing quotes may allow a broader search: (( central basic research program success. ) or ( central cgiar research program stress. )).
• Adding a wildcard symbol may retrieve word variants: (("central basic research program success.") or ("central cgiar research program stress."))*.