Perhaps you should try some spelling variations:
ban thai » ban than, ban thi, ban tai
thai cua » than cua, tai cuc, tri cua
te sach » toc sach
sach ky » sac ky, sach y, sach ty
van hau » van hai, van dau, van hac
xuc van » duc van, luc van, vuc van
cua tre » cua te, cuu tre, cua triet
van ha » van hoa, van chat, van hanh
x hoi » xa hoi, o hoi, x ho

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: te sach ky nang x hoi. hieu ((van hau) OR (van ha)) xuc van ban thai cua tre~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "te sach ky nang x hoi. hieu ((van hau) OR (van ha)) xuc van ban thai cua tre".
• Adding a wildcard symbol may retrieve word variants: te sach ky nang x hoi. hieu ((van hau) OR (van ha)) xuc van ban thai cua tre*.