Perhaps you should try some spelling variations:
gain yang » dan yang, daun yang, tan yang
heat gain » health gain, health gains, wheat grains
kang han » kang chen, kong hang, zhang han
yang jin » yang jie, yang jun, ying jin
hong ghi » zhong zhi, hong g
hong hai » shang hai, zhong tai, dang hai
yan han » man han, yan zhang, yan clan
wang » wing, wan, lang
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 ((yan han) OR (kang han)) heat gain yang jin ((((hong ghi) or (hong hai))) or (hong tan)) ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: wang ((yan han) OR (kang han)) heat gain yang jin ((((hong ghi) OR (hong hai))) OR (hong tan)) ;.
• The words AND, OR and NOT may confuse the search; try adding quotes: "wang ((yan han) OR (kang han)) heat gain yang jin ((((hong ghi) or (hong hai))) or (hong tan)) ;".
• Adding a wildcard symbol may retrieve word variants: wang ((yan han) OR (kang han)) heat gain yang jin ((((hong ghi) or (hong hai))) or (hong tan)) ;*.