Perhaps you should try some spelling variations:
wang yidan » wang yan
yidan jing » bian jing
gain yang » dan yang, tan yang, yin yang
daun yang » dan yang, du yang, tan yang
tan yong » tan hong, tan kong, tan yang
yang hai » dang hai, yang hui, shang hai
jing ji » ying jin
yi yang » yin yang, yi gang, yu yang

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

• Performing a fuzzy search may retrieve terms with similar spellings: wang yidan jing ji ((((gain yang) OR (daun yang))) or (tan yong)) yi yang hai ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: wang yidan jing ji ((((gain yang) OR (daun yang))) OR (tan yong)) yi yang hai ;.
• The words AND, OR and NOT may confuse the search; try adding quotes: "wang yidan jing ji ((((gain yang) OR (daun yang))) or (tan yong)) yi yang hai ;".
• Adding a wildcard symbol may retrieve word variants: wang yidan jing ji ((((gain yang) OR (daun yang))) or (tan yong)) yi yang hai ;*.