Perhaps you should try some spelling variations:
va triet » va thiet, ve triet, cua triet
va trien » va truyen, va thiet, va tuyen
su sach » so sach, vu sach
hieu ve » hieu va, hieu van
va hanh » van hanh, va thanh, va danh
y nang » ky nang, ly nang, v nang
ve cam » ve cham, ve cac, va cam
xuc va » duc va, tuc va, luc va
x hoi » xa hoi, o hoi, x ho

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 y nang x hoi. hieu ve cam xuc va hanh vi ((va triet) OR (va trien))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "su sach y nang x hoi. hieu ve cam xuc va hanh vi ((va triet) OR (va trien))".
• Adding a wildcard symbol may retrieve word variants: su sach y nang x hoi. hieu ve cam xuc va hanh vi ((va triet) OR (va trien))*.