Perhaps you should try some spelling variations:
thuat sach » thuat lanh, thuat san
cua triet » cua viet, su triet, va triet
sach ky » sac ky, sach y, sach ty
va danh » va dinh, va dan, dia danh
va hanh » van hanh, va thanh, ban hanh
cac xuc » cam xuc, cac nuoc, chat xuc
hieu ve » hieu va, hieu van
tang ma » mang may, tang van
ky tang » ky nang, ky dang, kho tang
su viet » so viet
ve cac » va cac, vien cac
ma hoi » mai hoi, xa hoi, ma hoa

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

• Performing a fuzzy search may retrieve terms with similar spellings: thuat sach ky tang ma hoi. hieu ve cac xuc ((va hanh) or (va danh)) vai ((cua triet) or (su viet))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: thuat sach ky tang ma hoi. hieu ve cac xuc ((va hanh) OR (va danh)) vai ((cua triet) OR (su viet)).
• Adding a wildcard symbol may retrieve word variants: thuat sach ky tang ma hoi. hieu ve cac xuc ((va hanh) or (va danh)) vai ((cua triet) or (su viet))*.