Perhaps you should try some spelling variations:
cua viet » ca viet, hoa viet, cua vat
tang van » dang van, hoang van, trong van
thanh vi » hanh vi, thanh va, thanh ve
hieu va » lieu va, hieu qua
sang ma » tang ma, nang ma, sang tao
sai ky » sac ky
va cam » va cham, va cac, va cao
xuc va » duc va, luc va, xac va
tuc va » thuc va, truc va, tuc xa
vi cua » vai cua, di cua
su sai » su tai, su hai, su dai

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: su sai ky ((sang ma) or (tang van)) hoi. hieu va cam ((xuc va) or (tuc va)) thanh vi cua viet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su sai ky ((sang ma) OR (tang van)) hoi. hieu va cam ((xuc va) OR (tuc va)) thanh vi cua viet.
• Adding a wildcard symbol may retrieve word variants: su sai ky ((sang ma) or (tang van)) hoi. hieu va cam ((xuc va) or (tuc va)) thanh vi cua viet*.