Perhaps you should try some spelling variations:
thanh chuong » thanh huong, thanh cong, nhanh chong
nghien cac » nghiep cach, nghien cuu, nghiep cay
chuong hoc » chung hoc, thuong hoc, truong hoc
hoc thanh » hoc nhanh, hoan thanh, hoc phan
toc sach » hoc sach, doc sach, thuoc sach
thu sach » tu sach, thuat sach, thuoc sach
cac cong » cua cong
cong hoc » dong hoc, cong hoa, cong coc
phan van » pham van, thanh van, luan van
va phan » van phan, va phat, va phap
hoc xa » hoc ma

You may be able to get more results by adjusting your search query.

• If you are trying to use Boolean operators, they must be ALL CAPS: ((toc sach) OR (thu sach)) hoc tap, nghien cac cong hoc thanh chuong hoc xa hoi va phan van~.
• Adding a wildcard symbol may retrieve word variants: ((toc sach) or (thu sach)) hoc tap, nghien cac cong hoc thanh chuong hoc xa hoi va phan van*.