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

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