Perhaps you should try some spelling variations:
ying yang » yin yang, ying chang, wang yang
yang yang » wang yang, wang yan
shang hai » shang kai, dang hai, chang ha
gang tin » lang tim
hong hai » zhong tai, dang hai, hong tan
yi gang » ii gang, i gang, li gang
li yi » lin yi, li li, lu yi

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

• Performing a fuzzy search may retrieve terms with similar spellings: jin ((ying yang) or (yang yang)) li yi gang tin ((hong hai) OR (shang hai)) ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: jin ((ying yang) OR (yang yang)) li yi gang tin ((hong hai) OR (shang hai)) ;*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "jin ((ying yang) or (yang yang)) li yi gang tin ((hong hai) OR (shang hai)) ;*".