Perhaps you should try some spelling variations:
cua viet » ca viet, hoa viet, cua vat
chat xuc » chat huu, cam xuc, chao xu
qua chat » qua nhat, qua cham, luan chat
sach ky » sac ky, sach y, sach ty
va hanh » van hanh, va thanh, va danh
su sach » so sach, vu sach
nang ma » tang ma, nang cao, mang may
sang ma » tang ma, sang tao, mang may
xuc va » duc va, tuc va, luc va
thiet » thieu

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 ((sang ma) or (nang ma)) hoi. hieu qua chat xuc va hanh vi ((cua viet) or (va thiet))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su sach ky ((sang ma) OR (nang ma)) hoi. hieu qua chat xuc va hanh vi ((cua viet) OR (va thiet)).
• Adding a wildcard symbol may retrieve word variants: su sach ky ((sang ma) or (nang ma)) hoi. hieu qua chat xuc va hanh vi ((cua viet) or (va thiet))*.