Perhaps you should try some spelling variations:
ban thai » ban than, ban thi, ban tai
thai cua » than cua, tai cuc, tri cua
tu sach » thu sach, su sach, te sach
sach ky » sac ky, sach y, sach ty
van hau » van ha, van dau, van hac
van hai » van ha, van chat, van hanh
xuc can » xuc cam, xuc ban, luc canh
can ban » van ban, toan ban
cua tre » cua te, cuu tre, cua triet
nang o » nang co, nang ho, nang ro
o hai » co hai, so hai, o lai

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

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