Perhaps you should try some spelling variations:
ve triet » va trien, su triet
ban hanh » ban hang
tang van » dang van, hoang van, trong van
van hanh » van thanh, van anh, van ban
su sach » so sach, vu sach
van hau » van ha, van hai, van dau
sach ky » sac ky, sach y, sach ty
van cam » van nam, van lam, van cau
van hoi » van hoa, van hoc, van hoe
ky tang » ky nang, ky dang, kho tang
vi ve » va ve, gi ve, ve ve

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: su sach ky tang van hoi. hieu ((van cam) OR (van hau)) xuc ((van hanh) OR (ban hanh)) vi ve triet~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "su sach ky tang van hoi. hieu ((van cam) or (van hau)) xuc ((van hanh) OR (ban hanh)) vi ve triet~".
• Adding a wildcard symbol may retrieve word variants: su sach ky tang van hoi. hieu ((van cam) or (van hau)) xuc ((van hanh) OR (ban hanh)) vi ve triet*.