Perhaps you should try some spelling variations:
gain yang » dan yang, daun yang, tan yang
heat gain » health gain, health gains, wheat grains
yan dean » yang dean, lane dean, can deal
van den » van der, van de
li song » li cong, kim song, jie song
li rong » yi rong, li cong, shi rong
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 dean) or (van den)) heat gain yang ((li song) or (li rong)) hai ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: wang ((yan dean) OR (van den)) heat gain yang ((li song) OR (li rong)) hai ;.
• Adding a wildcard symbol may retrieve word variants: wang ((yan dean) or (van den)) heat gain yang ((li song) or (li rong)) hai ;*.