Perhaps you should try some spelling variations:
heat gain » health gain, health gains, wheat grains
tuan heat » tuan hua, tube heat
dang hadi » dang hai
yan tuan » yan guan, yan yuan, anh tuan
yang lin » yang jin, wang lin, yang li
ying jin » yang jin, jing ji, yang jie
yang yi » yang di, yang xi, yang jui
wang » wing

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) or lang) yan tuan heat gain ((yang lin) or (((ying jin) or (yang yi)))) dang hadi ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((wang OR wan) OR lang) yan tuan heat gain ((yang lin) OR (((ying jin) OR (yang yi)))) dang hadi ;*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((wang OR wan) or lang) yan tuan heat gain ((yang lin) or (((ying jin) or (yang yi)))) dang hadi ;*".