Perhaps you should try some spelling variations:
cua viet » ca viet, hoa viet, cua vat
va tuyen » va truyen, tac tuyen, ke tuyen
su sach » so sach, vu sach
sach ty » sach y, sach tu, sach thu
nang ma » tang ma, sang ma, mang may
qua cam » qua cham, qua cac, qua ca
va hanh » van hanh, va thanh, va danh
xuc va » duc va, tuc va, luc va

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 ty ((nang ma) OR (nang cao)) hoi. hieu qua cam xuc va hanh vi ((cua viet) OR (va tuyen))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "su sach ty ((nang ma) OR (nang cao)) hoi. hieu qua cam xuc va hanh vi ((cua viet) or (va tuyen))~".
• Adding a wildcard symbol may retrieve word variants: su sach ty ((nang ma) OR (nang cao)) hoi. hieu qua cam xuc va hanh vi ((cua viet) or (va tuyen))*.