Perhaps you should try some spelling variations:
cau triet » cau trieu, su triet, cua triet
te sach » toc sach
sach ky » sac ky, sach y, sach ty
hieu va » lieu va
thi toc » thi tac, thi goc, thi loc
va danh » va dinh, va dan, va hanh
danh va » doanh va, hanh va, anh va
toc va » hoc va, toc ta, tuc va
va cau » van cau, va cac, va dau
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: te sach ky nang x hoi. ((hieu va) or (hieu qua)) thi toc va danh va cau triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sach ky nang x hoi. ((hieu va) OR (hieu qua)) thi toc va danh va cau triet.
• Adding a wildcard symbol may retrieve word variants: te sach ky nang x hoi. ((hieu va) or (hieu qua)) thi toc va danh va cau triet*.