Perhaps you should try some spelling variations:
thien van » thi van
cua triet » cua viet, va triet
van thanh » ban thanh, van tuan
su triet » su viet, su tien, ve triet
thanh vi » hanh vi, thanh va, thanh ve
duc van » duc va, duc tan, duc manh
nam duc » nam duoc, pham duc, nam thuc
nang co » nang cao, nang doc, nang noi
te sach » toc sach
co hoi » co hoc, co loi
te cac » tu cac, ve cac, te cao

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((te cac) or (te sach)) ky nang co hoi. thien van nam duc van thanh vi ((cua triet) OR (su triet))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((te cac) OR (te sach)) ky nang co hoi. thien van nam duc van thanh vi ((cua triet) OR (su triet)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "((te cac) or (te sach)) ky nang co hoi. thien van nam duc van thanh vi ((cua triet) OR (su triet))".
• Adding a wildcard symbol may retrieve word variants: ((te cac) or (te sach)) ky nang co hoi. thien van nam duc van thanh vi ((cua triet) OR (su triet))*.