Perhaps you should try some spelling variations:
ban thanh » ban hanh, ban hang
thanh lai » thanh hai, thanh lap, thanh loi
toc sach » hoc sach, thuoc sach, nuoc sach
doc sach » hoc sach, nuoc sach, dac sac
sang tao » hang tai
ky sang » ky nang, ky dang, ky tang
tao hoi » tao khoi, tao boi, tay hoi
hieu ve » hieu va, hieu van
ve pham » vi pham, v pham, ve phan
duc ban » duc tan, duc van, dua ban
lai cua » dai cua, hai cua, lai chau
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 (doc sach)) ky sang tao hoi. hieu ve pham duc ban thanh lai cua te~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((toc sach) OR (doc sach)) ky sang tao hoi. hieu ve pham duc ban thanh lai cua te.
• Adding a wildcard symbol may retrieve word variants: ((toc sach) or (doc sach)) ky sang tao hoi. hieu ve pham duc ban thanh lai cua te*.