Perhaps you should try some spelling variations:
su sach » so sach, vu sach
sach ly » sach y, sach lo, sach ty
ly mang » ly hang, ly vang, ly nang
mang xa » lang xa, mang may, dang xay
van cac » van hac, van cau, dan cac
van bac » van ban, van bao, van hac
xa hanh » xa thanh, xa khanh, va hanh
cua tre » cua te, cua triet, dua tren
cuu tre » cau tren, cau treo

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 ly mang xa hoi. hieu ((van cac) or (van bac)) tuc xa hanh vi ((cua tre) or (cuu tre))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su sach ly mang xa hoi. hieu ((van cac) OR (van bac)) tuc xa hanh vi ((cua tre) OR (cuu tre)).
• Adding a wildcard symbol may retrieve word variants: su sach ly mang xa hoi. hieu ((van cac) or (van bac)) tuc xa hanh vi ((cua tre) or (cuu tre))*.