Perhaps you should try some spelling variations:
yan zhang » yuan chang, bin zhang, han chang
kong sara » kong sar
lang yan » wang yan, wang yang, zhang yan
fan gain » fan again, run gain, n gain
yang jin » yang jun, ying jin, shang jin
yang jie » yang jui, yang xi, yang yi
song so » song von

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 zhang fan gain ((yang di) or (((yang jin) OR (yang jie)))) ((song so) or (kong sara)) ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: lang yan zhang fan gain ((yang di) OR (((yang jin) OR (yang jie)))) ((song so) OR (kong sara)) ;*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "lang yan zhang fan gain ((yang di) or (((yang jin) OR (yang jie)))) ((song so) or (kong sara)) ;*".