Perhaps you should try some spelling variations:
yan liang » yang liang, wang liang, you liang
heat gain » health gain, health gains, wheat grains
hua gain » run gain, hua ban, via gain
ying jin » yang jin, jing ji, yang jie
hong hai » shang hai, zhong tai, dang hai
wan man » woran man, kann man, wenn man
man han » man hat, man can, man kann

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

• Performing a fuzzy search may retrieve terms with similar spellings: wan man han ((hua gain) OR (heat gain)) ((yan liang) or (ying jin)) hong hai ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: wan man han ((hua gain) OR (heat gain)) ((yan liang) OR (ying jin)) hong hai ;.
• The words AND, OR and NOT may confuse the search; try adding quotes: "wan man han ((hua gain) OR (heat gain)) ((yan liang) or (ying jin)) hong hai ;".
• Adding a wildcard symbol may retrieve word variants: wan man han ((hua gain) OR (heat gain)) ((yan liang) or (ying jin)) hong hai ;*.