Perhaps you should try some spelling variations:
hieu viec » nhieu viec, hieu ve, sieu viet
dang xay » dang van, van xay
xach tay » canh tay
viec da » viec dat, vien da, viec va
cuu tre » cua tre, cau tren, cau treo
xay hoi » xa hoi, tay hoi, cay phoi
xuc va » duc va, luc va, xac va
tuc va » thuc va, truc va, tuc xa
vi cuu » vi luu, vinh cuu

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

• Performing a fuzzy search may retrieve terms with similar spellings: su ((xach tay) or (sach thieu)) dang xay hoi. hieu viec da ((xuc va) or (tuc va)) hanh vi cuu tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su ((xach tay) OR (sach thieu)) dang xay hoi. hieu viec da ((xuc va) OR (tuc va)) hanh vi cuu tre.
• Adding a wildcard symbol may retrieve word variants: su ((xach tay) or (sach thieu)) dang xay hoi. hieu viec da ((xuc va) or (tuc va)) hanh vi cuu tre*.