Perhaps you should try some spelling variations:
cau triet » cau trieu, su triet, va triet
cua triet » cua viet, su triet, va triet
hieu van » hieu va, thien van, lieu va
te sach » toc sach
sach ky » sac ky, sach y, sach ty
nang xa » nang x, lang xa, nang ma
van cam » van nam, van lam, van cau
va hanh » van hanh, va thanh, va danh
xuc va » duc va, tuc va, luc 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 ky nang xa hoi. hieu van cam xuc va hanh vi ((cua triet) or (cau triet))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sach ky nang xa hoi. hieu van cam xuc va hanh vi ((cua triet) OR (cau triet)).
• Adding a wildcard symbol may retrieve word variants: te sach ky nang xa hoi. hieu van cam xuc va hanh vi ((cua triet) or (cau triet))*.