Perhaps you should try some spelling variations:
ve triet » va trien
su triet » su viet, su tien
vu sach » vu bach, su sach, vu khach
sach ky » sac ky, sach y, sach ty
ky dang » ky nang, ky danh
dang xa » dang xay, lang xa, dang ha
qua cau » quan cau, qua cac, qua ca
truc va » thuc va, thuc vat, trung va
va hanh » van hanh, va thanh, va danh

You may be able to get more results by adjusting your search query.

• The words AND, OR and NOT may confuse the search; try adding quotes: "vu sach ky dang xa hoi. hieu qua cau truc va hanh vi ((ve triet) OR (su triet))~".
• Adding a wildcard symbol may retrieve word variants: vu sach ky dang xa hoi. hieu qua cau truc va hanh vi ((ve triet) OR (su triet))*.