Perhaps you should try some spelling variations:
thuoc sach » hoc sach, nuoc sach, thuat sach
thu sach » tu sach, thuat sach, thu hoach
dua tren » dung tren
cham tuc » nham thuc, pham thuc, tham thuc
va hanh » van hanh, va thanh, va danh
vu cham » va cham, vu kham, tu cham
hieu vu » hieu va, hieu ve, hieu su
nang ma » tang ma, sang ma, nang cao
tu nang » tru nang, tu nong, tu nano
cuu tre » cua tre, cau tren, cau treo
ma hoi » mai hoi, xa hoi, ma hoa
tuc va » thuc va, truc va, tuc xa

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: ((thu sach) OR (thuoc sach)) tu nang ma hoi. hieu vu cham tuc va hanh vi ((dua tren) OR (cuu tre))~.
• Adding a wildcard symbol may retrieve word variants: ((thu sach) or (thuoc sach)) tu nang ma hoi. hieu vu cham tuc va hanh vi ((dua tren) or (cuu tre))*.