Perhaps you should try some spelling variations:
yang liang » wang liang, yan liang, yang yang
heat gain » health gain, health gains, wheat grains
lang yan » wang yan, wang yang, zhang yan
hua gain » run gain, hua ban, via gain
yang lin » wang lin, yang li, huang lin
yang jin » yang jie, yang jun, ying jin
zong hai » hong hai, dang hai, long han
yan han » man han, yan zhang, kang han

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

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