Perhaps you should try some spelling variations:
ban hanh » ban hang
tu sach » thu sach, su sach, te sach
cac xuc » cam xuc, cac nuoc, chat xuc
hieu va » lieu va, hieu qua
xay hoi » xa hoi, tay hoi, cay phoi
ty dang » ky dang, ty hang, ty dong
vi cua » vai cua, di cua
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 ((ty dang) OR (ty xang)) xay hoi. hieu va cac xuc ((ban hanh) OR (gia thanh)) vi cua tu~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu sach ((ty dang) OR (ty xang)) xay hoi. hieu va cac xuc ((ban hanh) or (gia thanh)) vi cua tu~".
• Adding a wildcard symbol may retrieve word variants: tu sach ((ty dang) OR (ty xang)) xay hoi. hieu va cac xuc ((ban hanh) or (gia thanh)) vi cua tu*.