Perhaps you should try some spelling variations:
ban thanh » ban hanh, ban hang
thanh lap » thanh san, phan lap, thanh hai
chat luc » chat xuc, chat lua, nhan luc
sang tao » hang tai
cua tre » cuu tre, cua triet, dua tren
luc ban » duc ban, cuc ban, luc bat
ve chat » va chat, van chat
sach ty » sach tu, sach thu, xach tay
hieu ve » hieu va, hieu van
tao hoi » tao khoi, tao boi, tay hoi
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: tu ((sach ty) OR (sach y)) sang tao hoi. hieu ve chat luc ban thanh lap ((cua tre) or (cua te))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu ((sach ty) OR (sach y)) sang tao hoi. hieu ve chat luc ban thanh lap ((cua tre) OR (cua te)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu ((sach ty) OR (sach y)) sang tao hoi. hieu ve chat luc ban thanh lap ((cua tre) or (cua te))".
• Adding a wildcard symbol may retrieve word variants: tu ((sach ty) OR (sach y)) sang tao hoi. hieu ve chat luc ban thanh lap ((cua tre) or (cua te))*.