Perhaps you should try some spelling variations:
thanh van » thanh san, thanh toan, thanh phan
tu cham » toc cham, thi cham
van cua » vang cua, ban cua, dan cua
cham ky » pham ky, cam ky
cua tre » cua te, cuu tre, cua triet
hieu ve » hieu va, hieu van
mai hoi » mai khoi, dai hoi, lai hoi
tuc va » thuc va, truc va, duc va
me hoi » le hoi
ve cam » ve cham, ve cac, va cam

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: tu cham ky nang ((me hoi) OR (mai hoi)). hieu ve cam ((tuc va) OR (tuc xa)) thanh van cua tre~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu cham ky nang ((me hoi) or (mai hoi)). hieu ve cam ((tuc va) OR (tuc xa)) thanh van cua tre~".
• Adding a wildcard symbol may retrieve word variants: tu cham ky nang ((me hoi) or (mai hoi)). hieu ve cam ((tuc va) OR (tuc xa)) thanh van cua tre*.