Perhaps you should try some spelling variations:
china health » china's health, child health, capita health
liang china » living china, ming china, qing china
health gain » health goals
wang liang » wang yang
yang mind » sang minh, tang min, yang jing
yang jin » yang jie, yang jun, ying jin
tan » than

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

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