Perhaps you should try some spelling variations:
cua triet » cua viet, su triet, va triet
van thanh » ban thanh, van tuan
thanh ve » hanh ve, thanh va, thanh vien
tu sach » thu sach, su sach, te sach
xuc van » duc van, luc van, xuc ban
cac xuc » cam xuc, cac nuoc, chat xuc
sach ky » sac ky, sach y, sach ty
qua cac » cua cac
nang xa » lang xa, nang ma, mang xa
su viet » so viet

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 ky ((nang xa) OR (nang x)) hoi. hieu qua cac xuc van thanh ve ((cua triet) or (su viet))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sach ky ((nang xa) OR (nang x)) hoi. hieu qua cac xuc van thanh ve ((cua triet) OR (su viet)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu sach ky ((nang xa) OR (nang x)) hoi. hieu qua cac xuc van thanh ve ((cua triet) or (su viet))".
• Adding a wildcard symbol may retrieve word variants: tu sach ky ((nang xa) OR (nang x)) hoi. hieu qua cac xuc van thanh ve ((cua triet) or (su viet))*.