Perhaps you should try some spelling variations:
yang liang » wang liang, yan liang, yang yang
liang lag » lang lang, liang dan, liang li
heat gain » health gain, health gains, wheat grains
lag heat » large heat, a heat, lag test
yang lin » yang jin, wang lin, huang lin
hong hai » shang hai, zhong tai, hong tan
yang li » yang xi, yang yi, tang li

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

• Performing a fuzzy search may retrieve terms with similar spellings: yang liang lag heat gain ((yang di) or (((yang lin) OR (yang li)))) ((hong hai) or (dang hai)) ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: yang liang lag heat gain ((yang di) OR (((yang lin) OR (yang li)))) ((hong hai) OR (dang hai)) ;.
• The words AND, OR and NOT may confuse the search; try adding quotes: "yang liang lag heat gain ((yang di) or (((yang lin) OR (yang li)))) ((hong hai) or (dang hai)) ;".
• Adding a wildcard symbol may retrieve word variants: yang liang lag heat gain ((yang di) or (((yang lin) OR (yang li)))) ((hong hai) or (dang hai)) ;*.