Perhaps you should try some spelling variations:
ahsan syed » khan syed
chung kang » chan kang, chung kay
chung tong » chung chong, chung mona, phung tung
wang yuan » wang yuhan, wang yan, fang yuan
khan sher » han shen, khan syed, than she
young zhi » young choi, you zhi, young hr
yuan kai » yuan kang, yuan fei, tan kai

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

• If you are trying to use Boolean operators, they must be ALL CAPS: wang yuan kai ((khan sher) OR (ahsan syed)) ((chung kang) OR (chung tong)) young zhi ;~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "wang yuan kai ((khan sher) or (ahsan syed)) ((chung kang) OR (chung tong)) young zhi ;~".
• Adding a wildcard symbol may retrieve word variants: wang yuan kai ((khan sher) or (ahsan syed)) ((chung kang) OR (chung tong)) young zhi ;*.