Perhaps you should try some spelling variations:
heat gain » health gain, health gains, wheat grains
yang lin » yang jin, wang lin, yang li
ying jin » yang jin, jing ji, yang jie
hong hai » shang hai, zhong tai, dang hai
tan han » tan tan, tan shawn, tan hong
man han » man hat, man can, man kann
yang xi » yang di, yang yi, yang jui

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

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