Perhaps you should try some spelling variations:
ban thanh » ban hanh, ban hang
thanh lap » thanh san, phan lap, thanh hai
toc sach » thuoc sach, nuoc sach, toc san
doc sach » nuoc sach, dac sac, bo sach
hoc sach » hoc sinh, hoc cac, hoc anh
sang tao » hang tai
lap cua » lai cua, tap cua, lam cua
duc ban » duc tan, duc van, dua ban
tao hoi » tao khoi, tao boi, tay hoi
ky sang » ky nang, ky dang, ky tang
hieu v » hieu va, hieu ve, hieu 2
v pham » vi pham, d pham
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) OR (hoc sach)))) ky sang tao hoi. hieu v pham duc ban thanh lap cua te~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((toc sach) OR (((doc sach) OR (hoc sach)))) ky sang tao hoi. hieu v pham duc ban thanh lap cua te.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((toc sach) or (((doc sach) OR (hoc sach)))) ky sang tao hoi. hieu v pham duc ban thanh lap cua te".
• Adding a wildcard symbol may retrieve word variants: ((toc sach) or (((doc sach) OR (hoc sach)))) ky sang tao hoi. hieu v pham duc ban thanh lap cua te*.