Perhaps you should try some spelling variations:
cua viet » ca viet, hoa viet, cua vat
hanh vai » hanh vi, hanh va, hanh tai
vai cua » dai cua, hai cua, lai cua
va hanh » van hanh, va thanh, va danh
sach ty » sach tu, sach thu, xach tay
tang ma » mang may, tang van
ma hoi » mai hoi, xa hoi, ma hoa
ve cac » va cac, vien cac
tuc va » thuc va, truc va, tuc xa
ve cam » ve cham, va cam, ve cai

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 ty) OR (sach y)) tang ma hoi. hieu ((ve cam) OR (ve cac)) tuc va hanh vai cua viet~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu ((sach ty) OR (sach y)) tang ma hoi. hieu ((ve cam) or (ve cac)) tuc va hanh vai cua viet~".
• Adding a wildcard symbol may retrieve word variants: tu ((sach ty) OR (sach y)) tang ma hoi. hieu ((ve cam) or (ve cac)) tuc va hanh vai cua viet*.