Perhaps you should try some spelling variations:
ghana health » china health, data health
health gains » health gain, health gaps, health goals
man ghana » man han
yan liang » yang liang, wang liang, you liang
yang jin » yang jie, yang jun, ying jin
woran » woman, moran, goran
hai » hadi, haji, hari

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

• Performing a fuzzy search may retrieve terms with similar spellings: woran man ghana health gains ((yan liang) or (((yang judy) or (yang jin)))) dang hai ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: woran man ghana health gains ((yan liang) OR (((yang judy) OR (yang jin)))) dang hai ;.
• Adding a wildcard symbol may retrieve word variants: woran man ghana health gains ((yan liang) or (((yang judy) or (yang jin)))) dang hai ;*.