Perhaps you should try some spelling variations:
peak heat » weak head
heat gain » health gain, health gains, wheat grains
zhong zhi » zhang zhi, hong ghi, zhong tai
yan peak » can speak, a peak
yang lin » yang jin, wang lin, yang liang
wan yan » wang yan, nan yan, wai yan
yang li » yang di, yang xi, yang yi

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 peak heat gain ((yang lin) or (yang li)) zhong zhi ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: wan yan peak heat gain ((yang lin) OR (yang li)) zhong zhi ;.
• Adding a wildcard symbol may retrieve word variants: wan yan peak heat gain ((yang lin) or (yang li)) zhong zhi ;*.