Perhaps you should try some spelling variations:
yanling heat » boiling heat
yan yanling » wang yanling, yan jianping
heat gain » health gain, health gains, wheat grains
shang hai » shang kai, dang hai, chang ha
yang jin » yang jun, ying jin, shang jin
yang jie » yang di, yang jui, yang xi
hong ng » hong kong, hong jong, hong hong
wang » wing, lang

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

• Performing a fuzzy search may retrieve terms with similar spellings: (wang or wan) yan yanling heat gain ((yang jin) or (yang jie)) ((shang hai) or (hong ng)) ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (wang OR wan) yan yanling heat gain ((yang jin) OR (yang jie)) ((shang hai) OR (hong ng)) ;.
• Adding a wildcard symbol may retrieve word variants: (wang or wan) yan yanling heat gain ((yang jin) or (yang jie)) ((shang hai) or (hong ng)) ;*.