Perhaps you should try some spelling variations:
cua triet » cua viet, su triet, va triet
thanh te » thanh ve, thanh de, thanh le
te sach » toc sach
sach ky » sac ky, sach y, sach ty
nang xa » nang x, lang xa, mang xa
nang ma » tang ma, sang ma, nang cao
qua cac » cua cac
xuc van » luc van, vuc van, xuc ban
duc van » duc va, duc tan, duc manh
te cua » tue cua, le cua, de cua

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 ky ((nang xa) or (nang ma)) hoi. hieu qua cac ((xuc van) or (duc van)) thanh te cua triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sach ky ((nang xa) OR (nang ma)) hoi. hieu qua cac ((xuc van) OR (duc van)) thanh te cua triet.
• Adding a wildcard symbol may retrieve word variants: te sach ky ((nang xa) or (nang ma)) hoi. hieu qua cac ((xuc van) or (duc van)) thanh te cua triet*.