Perhaps you should try some spelling variations:
"central bank research program stress." » "central bank research programs stress.", "central bank research program success.", "central bank research program synthesis.", "central a research program stress."
"central ii research project success." » "central _ research project success.", "central 2 research project success.", "central a research project success.", "central de research project success.", "central india research project success.", "central ii research projects success."

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

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