Perhaps you should try some spelling variations:
ghana health » china health, data health
health gain » health goals
yang cindy » yang mind
hyoung tan » hyoung gun, young man, hong tan
yan ghana » yan guan, yan zhang
chan ming » kian ming, chan fong, chan kang
lang yan » wang yan, wang yang, zhang yan
chan eng » chan fong, chan kang, han en

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

• Performing a fuzzy search may retrieve terms with similar spellings: lang yan ghana health gain ((yang cindy) or (((chan ming) or (chan eng)))) hyoung tan ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: lang yan ghana health gain ((yang cindy) OR (((chan ming) OR (chan eng)))) hyoung tan ;.
• Adding a wildcard symbol may retrieve word variants: lang yan ghana health gain ((yang cindy) or (((chan ming) or (chan eng)))) hyoung tan ;*.