Perhaps you should try some spelling variations:
hang tai » hang va, dung tai
kho tang » cao tang
hanh tai » thanh tai, han tai, hinh tai
cua tre » cua te, cuu tre, cua triet
ky lang » ky nang, ky dang, ky tang
hieu va » lieu va, hieu qua
su sai » su tai, su hai, su dai
tu ban » thu ban, te ban
hac tu » hoc tu, tac tu, cac tu
va hac » van hac, va khac, va cac

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 sai ((ky lang) OR (kho tang)) xa hoi. hieu va hac tu ban ((hanh tai) OR (hang tai)) cua tre~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "su sai ((ky lang) or (kho tang)) xa hoi. hieu va hac tu ban ((hanh tai) OR (hang tai)) cua tre~".
• Adding a wildcard symbol may retrieve word variants: su sai ((ky lang) or (kho tang)) xa hoi. hieu va hac tu ban ((hanh tai) OR (hang tai)) cua tre*.