Perhaps you should try some spelling variations:
nganh cong » nhanh chong, thanh cong
thanh toan » thanh hoa, thanh san, tinh toan
hoc nganh » hoc nhanh
sach hoc » cach hoc, sach hoi, mach hoc
cong hoc » dong hoc, cong hoa, cong coc
nhan dan » phan dau, gian dan, nhan tai
tu sach » thu sach, su sach, te sach
cuu mon » cuu mo, cuu mot, cuu cong
mon hoc » toan hoc, dong hoc
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: tu sach hoc tap, nghien cuu mon hoc nganh cong hoc xa hoi va ((nhan dan) or (thanh toan))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sach hoc tap, nghien cuu mon hoc nganh cong hoc xa hoi va ((nhan dan) OR (thanh toan)).
• Adding a wildcard symbol may retrieve word variants: tu sach hoc tap, nghien cuu mon hoc nganh cong hoc xa hoi va ((nhan dan) or (thanh toan))*.