Perhaps you should try some spelling variations:
cua triet » cua viet, va triet
su triet » su viet, su tien, ve triet
cham luc » cham soc, nhan luc, cham cuu
qua cham » qua hai, qua cac, va cham
ky dang » ky nang, ky danh
dang xa » dang xay, lang xa, dang ha
vu sach » vu bach, vu khach
va hanh » van hanh, va thanh, va danh
su sach » so sach
luc va » duc va, tuc va, loc va

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

• If you are trying to use Boolean operators, they must be ALL CAPS: ((su sach) OR (vu sach)) ky dang xa hoi. hieu qua cham luc va hanh vi ((cua triet) OR (su triet))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((su sach) or (vu sach)) ky dang xa hoi. hieu qua cham luc va hanh vi ((cua triet) OR (su triet))~".
• Adding a wildcard symbol may retrieve word variants: ((su sach) or (vu sach)) ky dang xa hoi. hieu qua cham luc va hanh vi ((cua triet) OR (su triet))*.