Perhaps you should try some spelling variations:
cua viet » ca viet, hoa viet, cua vat
danh vi » dinh vi, danh di, danh va
su sach » so sach, vu sach
hieu ve » hieu va, hieu van
tang ma » mang may, tang van
ve cam » ve cham, ve cac, va cam
xuc va » duc va, tuc va, xac va
y tang » ky tang, 6 tang, 7 tang
luc va » duc va, tuc va, loc va
ma hoi » mai hoi, xa hoi, ma hoa

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: su sach y tang ma hoi. hieu ve cam ((xuc va) OR (luc va)) ((danh vi) OR (hanh vi)) cua viet~.
• Adding a wildcard symbol may retrieve word variants: su sach y tang ma hoi. hieu ve cam ((xuc va) or (luc va)) ((danh vi) or (hanh vi)) cua viet*.