Perhaps you should try some spelling variations:
cua viet » ca viet, hoa viet, cua vat
hanh vai » hanh vi, hanh va, hanh tai
vai cua » dai cua, hai cua, lai cua
va hanh » van hanh, va thanh, va danh
van cau » van dau, van hau, van chat
su sach » so sach, vu sach
sach ty » sach y, sach tu, sach thu
mang xa » mang may, dang xay, mang cua
lang xa » lang ha, dang xay, lang van
van cac » van hac, van bac, dan cac
xuc va » duc va, tuc va, luc va

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 ty ((lang xa) or (mang xa)) hoi. hieu ((van cac) or (van cau)) xuc va hanh vai cua viet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su sach ty ((lang xa) OR (mang xa)) hoi. hieu ((van cac) OR (van cau)) xuc va hanh vai cua viet.
• Adding a wildcard symbol may retrieve word variants: su sach ty ((lang xa) or (mang xa)) hoi. hieu ((van cac) or (van cau)) xuc va hanh vai cua viet*.