Perhaps you should try some spelling variations:
hanh vai » hanh vi, hanh va, hanh tai
ban hanh » ban hang
cua tre » cuu tre, cua triet, dua tren
su sach » so sach, vu sach
ky lang » ky nang, ky dang, ky tang
lang xa » lang ha, dang xay, lang van
hieu va » lieu va, hieu qua
hac tuc » thac toc, thai tuc
tuc ban » thuc ban, truc ban, tu ban
su sac » su cac, su xac
va hac » van hac, va khac, va cac
cua te » cua tu

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 sac) OR (su sach)) ky lang xa hoi. hieu va hac tuc ban hanh vai ((cua tre) OR (cua te))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((su sac) or (su sach)) ky lang xa hoi. hieu va hac tuc ban hanh vai ((cua tre) OR (cua te))~".
• Adding a wildcard symbol may retrieve word variants: ((su sac) or (su sach)) ky lang xa hoi. hieu va hac tuc ban hanh vai ((cua tre) OR (cua te))*.