Perhaps you should try some spelling variations:
te sach » toc sach
cao luc » bao luc, cao duc, cao suc
cua tre » cua te, cua triet, dua tren
dinh te » kinh te, dinh ve, dinh tu
sach tu » sach thu, cach tu, sach ty
hieu va » lieu va, hieu qua
manh xa » manh xay, mang xa, manh ba
tu manh » tu minh, tu hanh, vu manh
cuu tre » cau tren, cau treo
va cao » va cac, va co, va dao
luc va » duc va, tuc va, loc va

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

• Performing a fuzzy search may retrieve terms with similar spellings: te sach tu manh xa hoi. hieu va cao luc va ((dinh te) or (dich te)) ((cua tre) or (cuu tre))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sach tu manh xa hoi. hieu va cao luc va ((dinh te) OR (dich te)) ((cua tre) OR (cuu tre)).
• Adding a wildcard symbol may retrieve word variants: te sach tu manh xa hoi. hieu va cao luc va ((dinh te) or (dich te)) ((cua tre) or (cuu tre))*.