Perhaps you should try some spelling variations:
hieu viec » nhieu viec, hieu ve, sieu viet
danh sai » dung sai, danh bat, danh dau
van danh » van doanh, van anh, van hanh
viec cac » vien cac, viec cua, viec lam
cuu tre » cau tren, cau treo
sach ly » sach y, sach lo, sach ty
tu sach » thu sach, su sach, te sach
nang xa » lang xa, nang ma, mang xa
cua tre » cua te, cua triet, dua tren
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 ly ((nang xa) OR (nang x)) hoi. hieu viec cac lo van danh sai ((cuu tre) or (cua tre))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sach ly ((nang xa) OR (nang x)) hoi. hieu viec cac lo van danh sai ((cuu tre) OR (cua tre))*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu sach ly ((nang xa) OR (nang x)) hoi. hieu viec cac lo van danh sai ((cuu tre) or (cua tre))*".