Perhaps you should try some spelling variations:
te sach » toc sach
xa hanh » xa thanh, xa khanh, va hanh
nam tuc » nam thuc, nam truc, nam thuoc
sach ty » sach y, sach tu, sach thu
hieu va » lieu va, hieu qua
cua tre » cua te, cuu tre, cua triet
ty nang » ky nang, ty xang, ty hang
ma hoi » mai hoi, xa hoi, me hoi
nam tu » nam thu, nam thuc
vi cua » vai cua, di cua

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: te sach ty nang ((ma hoi) OR (ma hoa)). hieu va ((nam tuc) OR (nam tu)) xa hanh vi cua tre~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "te sach ty nang ((ma hoi) OR (ma hoa)). hieu va ((nam tuc) or (nam tu)) xa hanh vi cua tre~".
• Adding a wildcard symbol may retrieve word variants: te sach ty nang ((ma hoi) OR (ma hoa)). hieu va ((nam tuc) or (nam tu)) xa hanh vi cua tre*.