Perhaps you should try some spelling variations:
hieu viec » nhieu viec, hieu ve, sieu viet
danh vai » danh sai, danh va, doanh van
van danh » van doanh, van anh, van hanh
viec cac » vien cac, viec cua, viec lam
sach ty » sach y, sach thu, xach tay
vai cuu » vai cua
cuu tre » cua tre, cau tren, cau treo
mang xa » lang xa, mang may, dang xay
sach tu » sach thu, cach tu, sach uu
cac lo » cac lop, cac co, cac bo
lo van » le van, vo van, so van

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

• Performing a fuzzy search may retrieve terms with similar spellings: tu ((sach ty) OR (sach tu)) ((mang xa) or (nang x)) hoi. hieu viec cac lo van danh vai cuu tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu ((sach ty) OR (sach tu)) ((mang xa) OR (nang x)) hoi. hieu viec cac lo van danh vai cuu tre*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu ((sach ty) OR (sach tu)) ((mang xa) or (nang x)) hoi. hieu viec cac lo van danh vai cuu tre*".