Perhaps you should try some spelling variations:
health gain » health goals
heat gain » health gains, wheat grains
yan liang » yang liang, wang liang, you liang
dang hadi » dang hai
wenn man » kann man, wenn das
ying jin » yang jin, jing ji, yang jie
man can » man han, woman can, man kann

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

• If you are trying to use Boolean operators, they must be ALL CAPS: wenn man can ((heat gain) OR (health gain)) ((yan liang) OR (ying jin)) dang hadi ;~.
• Adding a wildcard symbol may retrieve word variants: wenn man can ((heat gain) or (health gain)) ((yan liang) or (ying jin)) dang hadi ;*.