Perhaps you should try some spelling variations:
yang liang » wang liang, yan liang, yang yang
wang yuan » wang yuhan, wang yan, fang yuan
yuan wang » yan wang, yuan kang, yuan chang
wang heat » wang hua, wang he, lag heat
heat gain » health gain, health gains, wheat grains
yang jin » yang jie, yang jun, ying jin

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

• Performing a fuzzy search may retrieve terms with similar spellings: wang yuan wang heat gain ((yang liang) or (yang jin)) dang (hai or haji) ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: wang yuan wang heat gain ((yang liang) OR (yang jin)) dang (hai OR haji) ;*.