Perhaps you should try some spelling variations:
thu sach » tu sach, thuat sach, thuoc sach
hieu van » hieu va, thien van, lieu va
nam thue » nam thu, nam thuc, lam thue
sach ky » sac ky, sach y, sach ty
thue va » thuc va, thuyet va, thuc vat
va hanh » van hanh, va thanh, va danh
vai cua » dai cua, hai cua, lai cua
vi cua » di cua
x hoi » xa hoi, o hoi, x ho

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

• Performing a fuzzy search may retrieve terms with similar spellings: thu sach ky nang x hoi. hieu van nam thue va hanh ((vi cua) or (vai cua)) triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: thu sach ky nang x hoi. hieu van nam thue va hanh ((vi cua) OR (vai cua)) triet.
• Adding a wildcard symbol may retrieve word variants: thu sach ky nang x hoi. hieu van nam thue va hanh ((vi cua) or (vai cua)) triet*.