Perhaps you should try some spelling variations:
ban hanh » ban hang
truc ban » thuc ban, truc dan, truc van
dang xay » dang van, van xay
cuu tre » cau tren, cau treo
cua tre » cua te, cua triet, dua tren
hanh de » hanh ve, hanh kem
hieu ve » hieu va, hieu van
xay hoi » xa hoi, tay hoi, cay phoi
ky dang » ky nang, ky danh
te sach » toc sach
ve cau » ke cau, va cau, ve cac
te sac » te cac, te san

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 sac) OR (te sach)) ky dang xay hoi. hieu ve cau truc ban hanh de ((cua tre) OR (cuu tre))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((te sac) OR (te sach)) ky dang xay hoi. hieu ve cau truc ban hanh de ((cua tre) or (cuu tre))~".
• Adding a wildcard symbol may retrieve word variants: ((te sac) OR (te sach)) ky dang xay hoi. hieu ve cau truc ban hanh de ((cua tre) or (cuu tre))*.