Perhaps you should try some spelling variations:
van thanh » ban thanh, van tuan
ban hang » ngan hang
tu sach » thu sach, su sach, tu cach
lai cua » dai cua, hai cua, lai chau
te sach » toc sach
nang ma » tang ma, sang ma, nang cao
hieu ve » hieu va, hieu van
cac xuc » cam xuc, cac nuoc, chat xuc
ve cac » va cac, vien cac
ma hoi » mai hoi, xa hoi, ma hoa
y nang » ky nang, ly nang, v nang
cua tu » cua tuc, cua su, cua cu

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: ((tu sach) OR (te sach)) y nang ma hoi. hieu ve cac xuc ((van thanh) OR (ban hang)) lai cua tu~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((tu sach) OR (te sach)) y nang ma hoi. hieu ve cac xuc ((van thanh) or (ban hang)) lai cua tu~".
• Adding a wildcard symbol may retrieve word variants: ((tu sach) OR (te sach)) y nang ma hoi. hieu ve cac xuc ((van thanh) or (ban hang)) lai cua tu*.