Perhaps you should try some spelling variations:
hua gain » heat gain, run gain, hua ban
yang jin » yang jie, yang jun, ying jin
nan yan » nan ya, wang yan, qian yan
yan tan » tan tan, yan clan, yan guan
tan hua » tuan hua, wang hua, tan chia
yang li » yang lin, yang di, yang yi
yang xi » yang di, yang yi, yang jui
hai » hadi, haji, hari

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

• Performing a fuzzy search may retrieve terms with similar spellings: nan yan tan hua gain ((yang li) or (((yang jin) or (yang xi)))) dang hai ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: nan yan tan hua gain ((yang li) OR (((yang jin) OR (yang xi)))) dang hai ;.
• Adding a wildcard symbol may retrieve word variants: nan yan tan hua gain ((yang li) or (((yang jin) or (yang xi)))) dang hai ;*.