Perhaps you should try some spelling variations:
yang liang » wang liang, yan liang, yang yang
heat gain » health gain, health gains, wheat grains
lag heat » large heat, a heat, lag test
yang jin » yang jie, yang jun, ying jin
hong hai » shang hai, zhong tai, hong tan
wan man » woran man, kann man, wenn man
man lag » man lara

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 lag heat gain ((yang liang) or (yang jin)) ((hong hai) or (dang hai)) ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: wan man lag heat gain ((yang liang) OR (yang jin)) ((hong hai) OR (dang hai)) ;.
• Adding a wildcard symbol may retrieve word variants: wan man lag heat gain ((yang liang) or (yang jin)) ((hong hai) or (dang hai)) ;*.