Perhaps you should try some spelling variations:
yang yang » wang yan
wang yang » wang yan, wang liang, wang yanling
xiao yang » xiao zhang, xia fang, xiao yuan
gang hadi » dang hai
yan yang » yao yang, dan yang, yan wang
tan yang » dan yang, tan ying, tan yong
yi gang » ii gang, i gang, li gang

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

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