Perhaps you should try some spelling variations:
david chang » david ching, david chan, david zhang
yuan yong » yuan ying, huan yong, yuan yang
kuan yong » kuan ying, huan yong, wan yong
chang wen » chiang wen, chang weng, chang wei
de david » dye david, dee david, die david
san wen » tan wen
foo de » fao de
la san » fa san, la sal, ya san

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

• Performing a fuzzy search may retrieve terms with similar spellings: (( ((yuan yong) or (kuan yong)) foo de david chang wen da xi. ) or ( ((yuan yong) or (kuan yong)) foo de la san wen da xi. ))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (( ((yuan yong) OR (kuan yong)) foo de david chang wen da xi. ) OR ( ((yuan yong) OR (kuan yong)) foo de la san wen da xi. )).
• Adding a wildcard symbol may retrieve word variants: (( ((yuan yong) or (kuan yong)) foo de david chang wen da xi. ) or ( ((yuan yong) or (kuan yong)) foo de la san wen da xi. ))*.