Perhaps you should try some spelling variations:
juan meng » juan rene, jui meng, yuan ming
lang yan » wang yan, wang yang, zhang yan
yan minh » tuan minh, sang minh, yang mind
jong min » gong min, song min, song ming
cong sun » cong shu, wing sun
cong van » congo can, duong van
yi juan » y juan
yan yi » yang yi, tan yi, yan zi

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: lang yan yi juan meng ((yan minh) OR (jong min)) ((cong sun) OR (cong van)) ;~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "lang yan yi juan meng ((yan minh) or (jong min)) ((cong sun) OR (cong van)) ;~".
• Adding a wildcard symbol may retrieve word variants: lang yan yi juan meng ((yan minh) or (jong min)) ((cong sun) OR (cong van)) ;*.