Perhaps you should try some spelling variations:
va triet » va thiet, va trien, ve triet
vu sach » vu bach, su sach, vu khach
ky lang » ky nang, ky tang, tay lang
ky dang » ky nang, ky danh
qua cau » quan cau, qua cac, qua ca
truc va » thuc va, thuc vat, trung va
va hanh » van hanh, va thanh, va danh
vi va » vi van, vai va, vu 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: vu sach ((ky lang) OR (ky dang)) xa hoi. hieu qua cau truc va hanh vi va triet~.
• Adding a wildcard symbol may retrieve word variants: vu sach ((ky lang) or (ky dang)) xa hoi. hieu qua cau truc va hanh vi va triet*.