Perhaps you should try some spelling variations:
heat gain » health gain, health gains, wheat grains
yan liang » yang liang, wang liang, yan wang
you liang » you xian, you liangzhi
shang hai » shang kai, dang hai, chang ha
wenn man » kann man, wenn das
ying jin » yang jin, jing ji, yang jie
kann » ann

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 kann heat gain ((((yan liang) OR (you liang))) OR (ying jin)) shang hai ;~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "wenn man kann heat gain ((((yan liang) OR (you liang))) or (ying jin)) shang hai ;~".
• Adding a wildcard symbol may retrieve word variants: wenn man kann heat gain ((((yan liang) OR (you liang))) or (ying jin)) shang hai ;*.