Perhaps you should try some spelling variations:
van thanh » ban thanh, van tuan
nang noi » nang doc
thanh vi » hanh vi, thanh va, thanh ve
cua viet » ca viet, hoa viet, cua vat
noi hoi » noi doi, doi hoi, hoi hoi
thi van » thi lan, thi hanh, thi nang
duc van » duc va, duc tan, duc manh
te sac » te sach, te cac, te san
sac ky » cac ky, sai ky
vi cua » vai cua, di cua

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: te sac ky nang noi hoi. ((thien van) OR (thi van)) pham duc van thanh vi cua viet~.
• Adding a wildcard symbol may retrieve word variants: te sac ky nang noi hoi. ((thien van) or (thi van)) pham duc van thanh vi cua viet*.