Perhaps you should try some spelling variations:
heat gain » health gain, health gains, wheat grains
huang bin » huang lin, huang jing, huang ting
zhang zhi » zhong zhi, wang zhi, zhang wei
yan clan » das clan, yan yuan
yan guan » gan guan, yan yuan, yang guang
yang lin » yang jin, wang lin, yang liang
yang li » yang di, yang xi, yang yi
wang » wing, wan, 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 ((yan clan) OR (yan guan)) heat gain ((((yang lin) or (yang li))) or (huang bin)) zhang zhi ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: wang ((yan clan) OR (yan guan)) heat gain ((((yang lin) OR (yang li))) OR (huang bin)) zhang zhi ;*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "wang ((yan clan) OR (yan guan)) heat gain ((((yang lin) or (yang li))) or (huang bin)) zhang zhi ;*".