Perhaps you should try some spelling variations:
thuoc sach » hoc sach, nuoc sach, thuat sach
te sach » toc sach
van anh » van thanh, tuan anh, van minh
xuc van » duc van, luc van, vuc van
cac xuc » cam xuc, cac nuoc, chat xuc
hieu va » lieu va
tang ma » mang may, tang van
ty tang » tay tang, ty xang, ty hang
ma hoi » mai hoi, xa hoi, ma hoa
anh vi » hanh vi, anh va, anh ve
vi cua » vai cua, di cua
cua su » qua su

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) or (thuoc sach)) ty tang ma hoi. ((hieu va) or (hieu qua)) cac xuc van anh vi cua su~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((te sach) OR (thuoc sach)) ty tang ma hoi. ((hieu va) OR (hieu qua)) cac xuc van anh vi cua su.
• Adding a wildcard symbol may retrieve word variants: ((te sach) or (thuoc sach)) ty tang ma hoi. ((hieu va) or (hieu qua)) cac xuc van anh vi cua su*.