Perhaps you should try some spelling variations:
"central a research program baselines." » "central a research program basel.", "central a research programs baselines.", "central a research project baselines.", "central _ research program baselines.", "central tax research program baselines.", "central s.a research program baselines."
"central 2 research program stress." » "central 2 research programs stress.", "central 2 research project stress.", "central 2 research program success.", "central 2 research program synthesis.", "central _ research program stress.", "central de 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 a research program baselines.") or ("central 2 research program stress."))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (("central a research program baselines.") OR ("central 2 research program stress."))*.
• Removing quotes may allow a broader search: (( central a research program baselines. ) or ( central 2 research program stress. ))*.