Perhaps you should try some spelling variations:
cua triet » cua viet, su triet, va triet
te sach » toc sach
danh de » hanh de, dan de, dang de
nang xa » nang x, nang ma, mang xa
lang xa » lang ha, dang xay, lang van
hieu ve » hieu va, hieu van
sach ty » sach y, sach tu, sach thu
cac luc » cau luc, coc luc, cac nuoc
va danh » va dinh, va dan, va hanh
ve cac » va cac, vien cac
luc va » duc va, tuc va, loc va
cua te » cua tu

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 ty ((nang xa) or (lang xa)) hoi. hieu ve cac luc va danh de ((cua triet) or (cua te))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sach ty ((nang xa) OR (lang xa)) hoi. hieu ve cac luc va danh de ((cua triet) OR (cua te)).
• Adding a wildcard symbol may retrieve word variants: te sach ty ((nang xa) or (lang xa)) hoi. hieu ve cac luc va danh de ((cua triet) or (cua te))*.