Perhaps you should try some spelling variations:
heat gain » health gain, health gains, wheat grains
yan liang » yang liang, wang liang, you liang
zhong tai » hong tan, hong hai, zhong zhi
can heat » can beat, can hear, ocean heat
ying jin » yang jin, jing ji, yang jie
man can » man han, woman can, man kann
yang yi » yang di, yang xi, yang jui
kann » ann

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

• Performing a fuzzy search may retrieve terms with similar spellings: kann man can heat gain ((yan liang) or (((ying jin) or (yang yi)))) zhong tai ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: kann man can heat gain ((yan liang) OR (((ying jin) OR (yang yi)))) zhong tai ;.
• Adding a wildcard symbol may retrieve word variants: kann man can heat gain ((yan liang) or (((ying jin) or (yang yi)))) zhong tai ;*.