Perhaps you should try some spelling variations:
ve triet » va trien, su triet
dang xay » dang van, van xay
va danh » va dinh, va dan, dia danh
va hanh » van hanh, va thanh, ban hanh
vu sach » vu bach, su sach, vu khach
sach ky » sac ky, sach y, sach ty
qua cau » quan cau, qua cac, qua cai
xay hoi » xa hoi, tay hoi, cay phoi
ky dang » ky nang, ky danh
qua ca » qua cac, qua cua, qua cai
gi ve » gia ve, gi de, gi he

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