Perhaps you should try some spelling variations:
heat gain » health gain, health gains, wheat grains
yan guan » gan guan, yan yuan, yang guang
yang jin » yang jie, yang jun, ying jin
yang jui » yang judy, yang di, yang xi
yang li » yang lin, yang di, yang xi
wang » wing, wan, lang
hai » haji, hari, thai

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

• Performing a fuzzy search may retrieve terms with similar spellings: wang yan guan heat gain ((yang li) or (((yang jin) or (yang jui)))) ((dang hadi) OR (dang hai)) ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: wang yan guan heat gain ((yang li) OR (((yang jin) OR (yang jui)))) ((dang hadi) OR (dang hai)) ;.
• The words AND, OR and NOT may confuse the search; try adding quotes: "wang yan guan heat gain ((yang li) or (((yang jin) or (yang jui)))) ((dang hadi) OR (dang hai)) ;".
• Adding a wildcard symbol may retrieve word variants: wang yan guan heat gain ((yang li) or (((yang jin) or (yang jui)))) ((dang hadi) OR (dang hai)) ;*.