Perhaps you should try some spelling variations:
wang kang » wang yang, wang liang, wang yan
kang chen » chang chen, jane chen, kang han
heat gain » health gain, health gains, wheat grains
hua gain » run gain, hua ban, via gain
yang lin » yang jin, wang lin, yang li
yang yi » yang di, yang jui
yang xi » yang di, yang jui
tan » than

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

• Performing a fuzzy search may retrieve terms with similar spellings: wang kang chen ((hua gain) OR (heat gain)) ((((yang lin) or (yang yi))) or (yang xi)) hong tan ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: wang kang chen ((hua gain) OR (heat gain)) ((((yang lin) OR (yang yi))) OR (yang xi)) hong tan ;*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "wang kang chen ((hua gain) OR (heat gain)) ((((yang lin) or (yang yi))) or (yang xi)) hong tan ;*".