Perhaps you should try some spelling variations:
ban thanh » ban hanh, ban hang
thanh hai » thanh phan, thanh hoa, thanh san
cham duc » pham duc, cham soc, pham duy
toc sach » hoc sach, doc sach, thuoc sach
sang tao » hang tai
cua tre » cuu tre, cua triet, dua tren
duc ban » duc tan, duc van, dua ban
vu cham » va cham, vu kham, tu cham
hieu vu » hieu va, hieu ve, hieu su
tao hoi » tao khoi, tao boi, tay hoi
y sang » _ sang, duy sang
cua te » cua tu

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) OR (toc sach)) y sang tao hoi. hieu vu cham duc ban thanh hai ((cua tre) or (cua te))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((te sach) OR (toc sach)) y sang tao hoi. hieu vu cham duc ban thanh hai ((cua tre) OR (cua te)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "((te sach) OR (toc sach)) y sang tao hoi. hieu vu cham duc ban thanh hai ((cua tre) or (cua te))".
• Adding a wildcard symbol may retrieve word variants: ((te sach) OR (toc sach)) y sang tao hoi. hieu vu cham duc ban thanh hai ((cua tre) or (cua te))*.