Perhaps you should try some spelling variations:
hoc nhanh » hoc nganh, hoc phan
chong hoc » chong doc, thong hoc, thuong hoc
chung hoc » trung hoc, dung hoc, hung hoa
sach doi » sach hoi, sach moi, sach dao
nhan tao » nhan tai, nhan dan
su sach » so sach, vu sach
doi tai » hoi tai, dai tai, doi tac
cuu mon » cuu mo, cuu mot, cuu cong
mon hoc » toan hoc, dong hoc
va nhan » van nhan, ca nhan, va phan
ma hoi » mai hoi, xa hoi, ma hoa

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

• Performing a fuzzy search may retrieve terms with similar spellings: su sach doi tai, nghien cuu mon hoc nhanh ((chong hoc) or (chung hoc)) ma hoi va nhan tao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su sach doi tai, nghien cuu mon hoc nhanh ((chong hoc) OR (chung hoc)) ma hoi va nhan tao*.