Perhaps you should try some spelling variations:
hoc sach » hoc sinh, hoc cac, hoc anh
hieu van » hieu va, thien van, lieu va
ve triet » va trien, su triet
nang ma » tang ma, sang ma, nang cao
van cam » van nam, van lam, van cau
va hanh » van hanh, va thanh, va danh
y nang » ky nang, ly nang, v nang
ma hoi » mai hoi, xa hoi, ma hoa
xuc va » duc va, tuc va, luc 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: hoc sach y nang ma hoi. hieu van cam xuc va hanh vi ((cua te) or (ve triet))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc sach y nang ma hoi. hieu van cam xuc va hanh vi ((cua te) OR (ve triet)).
• Adding a wildcard symbol may retrieve word variants: hoc sach y nang ma hoi. hieu van cam xuc va hanh vi ((cua te) or (ve triet))*.