Perhaps you should try some spelling variations:
dang xay » dang van, van xay
truc ban » thuc ban, truc van, truoc bang
truc dan » thuc dan, tuc dan, truc dai
cuu tre » cau tren, cau treo
ky dang » ky nang, ky danh
xay hoi » xa hoi, tay hoi, cay phoi
hieu ve » hieu va, hieu van
cua tre » cua te, cua triet, dua tren
hanh de » hanh ve, hanh kem
te sai » te tai, te bai, te lai
sai ky » sac ky
ve cac » va cac, vien cac

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: te sai ky dang xay hoi. hieu ve cac ((truc ban) or (truc dan)) hanh de ((cua tre) or (cuu tre))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sai ky dang xay hoi. hieu ve cac ((truc ban) OR (truc dan)) hanh de ((cua tre) OR (cuu tre)).
• Adding a wildcard symbol may retrieve word variants: te sai ky dang xay hoi. hieu ve cac ((truc ban) or (truc dan)) hanh de ((cua tre) or (cuu tre))*.