Perhaps you should try some spelling variations:
ahsan syed » khan syed
khan sher » han shen, khan syed, than she
chen zhen » chen zhe
tuan hua » tan hua, tuan vu, yuan hui
tan kai » yuan kai
tan kah » tan ah
chan yu » chen yu, chang yun, chan lau
yu chen » yu cheng, yi chen, yulu chen

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

• Performing a fuzzy search may retrieve terms with similar spellings: fang ((tuan hua) or (((tan kai) OR (tan kah)))) ((khan sher) or (ahsan syed)) chan yu chen zhen ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: fang ((tuan hua) OR (((tan kai) OR (tan kah)))) ((khan sher) OR (ahsan syed)) chan yu chen zhen ;*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "fang ((tuan hua) or (((tan kai) OR (tan kah)))) ((khan sher) or (ahsan syed)) chan yu chen zhen ;*".