Perhaps you should try some spelling variations:
china health » china's health, child health, capita health
health gain » health goals
long thanh » luong thanh, long han, long trinh
ban china » can china, dan china, han china
yang mind » yang cindy, yang jin, sang minh
hong than » hong tan, hong hai
wang ban » wang yan, wang dan, wang yang
ying jin » yang jin, jing ji, yang jie

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

• Performing a fuzzy search may retrieve terms with similar spellings: wang ban china health gain ((yang mind) or (ying jin)) ((hong than) OR (long thanh)) ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: wang ban china health gain ((yang mind) OR (ying jin)) ((hong than) OR (long thanh)) ;.
• The words AND, OR and NOT may confuse the search; try adding quotes: "wang ban china health gain ((yang mind) or (ying jin)) ((hong than) OR (long thanh)) ;".
• Adding a wildcard symbol may retrieve word variants: wang ban china health gain ((yang mind) or (ying jin)) ((hong than) OR (long thanh)) ;*.