Perhaps you should try some spelling variations:
nhanh chong » thanh cong, khanh phong
hoc nhanh » hoc nganh, hoc phan
chong hoc » chung hoc, chong doc, thong hoc
sach hoc » cach hoc, sach hoi, sach duoc
mach hoc » cach hoc, dich hoc, anh hoc
cuu dong » cuu cong, cuu tong, cuu long
dong hoc » dong co, dong luc
gian dan » gian lang
va gian » va gianh, van gian, va giai
hoc xa » hoc ma

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 hoc) or (mach hoc)) tap, nghien cuu dong hoc nhanh chong hoc xa hoi va gian dan~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su ((sach hoc) OR (mach hoc)) tap, nghien cuu dong hoc nhanh chong hoc xa hoi va gian dan.
• Adding a wildcard symbol may retrieve word variants: su ((sach hoc) or (mach hoc)) tap, nghien cuu dong hoc nhanh chong hoc xa hoi va gian dan*.