Perhaps you should try some spelling variations:
thanh lap » thanh san, phan lap, thanh hai
ban thanh » ban hanh, ban hang
toc sach » doc sach, thuoc sach, nuoc sach
cham cuc » cham cuu, pham cuc, pham chuc
hoc sach » hoc sinh, hoc cac, hoc anh
hang tai » hang va, dung tai
cua tre » cuu tre, cua triet, dua tren
cuc ban » cua ban, cac ban, cuu ban
hieu ve » hieu va, hieu van
ve cham » va cham, ve chat, vu cham
tai hoi » tai khoi, dai hoi, tai hai
ty hang » ly hang, ty xang, thi hang
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: ((toc sach) or (hoc sach)) ty hang tai hoi. hieu ve cham cuc ban thanh lap ((cua tre) or (cua te))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((toc sach) OR (hoc sach)) ty hang tai hoi. hieu ve cham cuc ban thanh lap ((cua tre) OR (cua te)).
• Adding a wildcard symbol may retrieve word variants: ((toc sach) or (hoc sach)) ty hang tai hoi. hieu ve cham cuc ban thanh lap ((cua tre) or (cua te))*.