Perhaps you should try some spelling variations:
cua viet » ca viet, hoa viet, cua vat
dang xay » dang van, van xay
xa hung » ba hung, ha hung, la hung
xa hang » va hang, xa bang, ban hang
tu sach » thu sach, su sach, te sach
sach ky » sac ky, sach y, sach ty
xay hoi » xa hoi, tay hoi, cay phoi
ky dang » ky nang, ky danh
va cua » va chua, via cua, ca cua

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: tu sach ky dang xay hoi. hieu ((van lam) OR (van nam)) tuc ((xa hang) OR (xa hung)) va cua viet~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu sach ky dang xay hoi. hieu ((van lam) or (van nam)) tuc ((xa hang) OR (xa hung)) va cua viet~".
• Adding a wildcard symbol may retrieve word variants: tu sach ky dang xay hoi. hieu ((van lam) or (van nam)) tuc ((xa hang) OR (xa hung)) va cua viet*.