Perhaps you should try some spelling variations:
thanh lap » thanh san, phan lap, thanh hai
ban thanh » ban hanh, ban hang
cham duc » pham duc, cham soc, pham duy
thao hoc » thai hoc, than hoc, thao khoa
tu sach » thu sach, su sach, te sach
cuu tre » cua tre, cau tren, cau treo
duc ban » duc tan, duc van, dua ban
hieu ve » hieu va, hieu van
ve cham » va cham, ve chat, vu cham
sach ty » sach y, sach tu, sach thu
tay hoi » tay ho, tao hoi, tay thai
ty sang » ty xang, ty hang, 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: tu sach ty sang ((thao hoc) or (tay hoi)). hieu ve cham duc ban thanh lap ((cuu tre) or (cua te))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sach ty sang ((thao hoc) OR (tay hoi)). hieu ve cham duc ban thanh lap ((cuu tre) OR (cua te)).
• Adding a wildcard symbol may retrieve word variants: tu sach ty sang ((thao hoc) or (tay hoi)). hieu ve cham duc ban thanh lap ((cuu tre) or (cua te))*.