Perhaps you should try some spelling variations:
cua viet » ca viet, hoa viet, cua vat
thanh vi » hanh vi, thanh va, thanh ve
xuc gia » duc gia, luc gia, tuc gia
nam xuc » cam xuc, nam xua, nam thuc
sach ky » sac ky, sach y, sach kem
hieu va » lieu va, hieu qua
sach ty » sach y, sach tu, sach thu
co viet » so viet, o viet, hoc viet
va nam » van nam, ha nam, va nay
x hoi » xa hoi, o hoi, x ho

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

• Performing a fuzzy search may retrieve terms with similar spellings: su ((sach ky) or (sach ty)) nang x hoi. hieu va nam xuc gia thanh vi ((cua viet) or (co viet))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su ((sach ky) OR (sach ty)) nang x hoi. hieu va nam xuc gia thanh vi ((cua viet) OR (co viet)).
• Adding a wildcard symbol may retrieve word variants: su ((sach ky) or (sach ty)) nang x hoi. hieu va nam xuc gia thanh vi ((cua viet) or (co viet))*.