Perhaps you should try some spelling variations:
vu khach » vu khanh, vu khac, vay khach
dang xay » dang van, van xay
hai chuc » hoi chuc, hai chu, hai cuc
ve triet » va trien, su triet
vu sach » vu bach, su sach
ky dang » ky nang, ky danh
xay hoi » xa hoi, tay hoi, cay phoi
qua hai » qua hoat
chuc va » thuc va, thuc vat
va hanh » van hanh, va thanh, va danh
vi ve » va ve, gi ve, ve ve

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) OR (vu khach)) ky dang xay hoi. hieu qua hai chuc va hanh vi ve triet~.
• Adding a wildcard symbol may retrieve word variants: ((vu sach) or (vu khach)) ky dang xay hoi. hieu qua hai chuc va hanh vi ve triet*.