Perhaps you should try some spelling variations:
cua triet » cua viet, su triet
hieu van » hieu va, thien van, lieu va
va triet » va thiet, va trien, ve triet
su sach » so sach, vu sach
sach ky » sac ky, sach y, sach ty
van hoi » van hoa, van hoc, van loi
van hoe » van hoa, van hoc, van hieu
nam xuc » cam xuc, nam xua, nam thuc
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: su sach ky nang ((van hoi) or (van hoe)). hieu van nam xuc va hanh vi ((cua triet) OR (va triet))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su sach ky nang ((van hoi) OR (van hoe)). hieu van nam xuc va hanh vi ((cua triet) OR (va triet))*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "su sach ky nang ((van hoi) or (van hoe)). hieu van nam xuc va hanh vi ((cua triet) OR (va triet))*".