Perhaps you should try some spelling variations:
yang liang » wang liang, yan liang, peng liang
yang yang » wang yang
hua gain » heat gain, run gain, hua ban
yang jin » yang jie, yang jun, ying jin
wan yan » nan yan, wai yan, wang yang
han hua » tan hua, wang hua, tuan hua
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: ((wan yan) or (wang yan)) han hua gain ((((yang liang) OR (yang yang))) or (yang jin)) dang hai ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((wan yan) OR (wang yan)) han hua gain ((((yang liang) OR (yang yang))) OR (yang jin)) dang hai ;.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((wan yan) or (wang yan)) han hua gain ((((yang liang) OR (yang yang))) or (yang jin)) dang hai ;".
• Adding a wildcard symbol may retrieve word variants: ((wan yan) or (wang yan)) han hua gain ((((yang liang) OR (yang yang))) or (yang jin)) dang hai ;*.