Perhaps you should try some spelling variations:
vu khach » vu khanh, vu khac, cua khach
dang xay » dang van, van xay
hai thuc » thai thuc, dai thuc, ha thuc
ve triet » va trien, su triet
ky dang » ky nang, ky danh
xay hoi » xa hoi, tay hoi, cay phoi
qua hai » qua hoat
thuc va » thuc vat, thuc dan, thuc day
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.

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