Perhaps you should try some spelling variations:
thanh hai » thanh phan, thanh hoa, thanh san
thanh vai » thanh van, thanh tai, thanh oai
hieu van » hieu va, thien van, lieu va
su sach » so sach
van cac » van hac, van cau, van bac
cac tuc » cac toc, cac tu, cac tac
vu sach » vu bach, vu khach
cua tre » cua te, cuu tre, cua triet
x hoi » xa hoi, o hoi, x ho

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) OR (vu sach)) ky nang x hoi. hieu van cac tuc xa ((thanh vai) OR (thanh hai)) cua tre~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((su sach) or (vu sach)) ky nang x hoi. hieu van cac tuc xa ((thanh vai) OR (thanh hai)) cua tre~".
• Adding a wildcard symbol may retrieve word variants: ((su sach) or (vu sach)) ky nang x hoi. hieu van cac tuc xa ((thanh vai) OR (thanh hai)) cua tre*.