Perhaps you should try some spelling variations:
thanh de » hanh de, thanh ve, thanh do
ve triet » va trien, su triet
te sach » toc sach
su sach » so sach, vu sach
nang co » nang cao, nang doc, nang noi
hieu ve » hieu va, hieu van
ve cham » va cham, ve chat, vu cham
co hoi » co hoc, co loi
xac va » tac va, ac va, bac va

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((te sach) or (su sach)) ky nang co hoi. hieu ve cham ((xac va) or (duc va)) thanh de ve triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((te sach) OR (su sach)) ky nang co hoi. hieu ve cham ((xac va) OR (duc va)) thanh de ve triet.
• Adding a wildcard symbol may retrieve word variants: ((te sach) or (su sach)) ky nang co hoi. hieu ve cham ((xac va) or (duc va)) thanh de ve triet*.