Perhaps you should try some spelling variations:
ghana health » china health, data health
health gaps » health gap, health goals, health gains
yang liang » wang liang, yan liang, yang yang
man ghana » man han
ying jin » yang jin, jing ji, yang jie
kann » ann
hai » hadi, haji, hari

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

• The words AND, OR and NOT may confuse the search; try adding quotes: "kann man ghana health gaps ((yang liang) OR (ying jin)) dang hai ;~".
• Adding a wildcard symbol may retrieve word variants: kann man ghana health gaps ((yang liang) OR (ying jin)) dang hai ;*.