Perhaps you should try some spelling variations:
khong thuoc » khang thuoc, hong phuoc, dong thuoc
nganh khong » nganh cong, nhanh chong, nganh nong
hoc nganh » hoc nhanh
mach hoc » cach hoc, dich hoc, anh hoc
thuoc ma » hoc ma, duoc ma
cuu mon » cuu mo, cuu mot, cuu cong
mon hoc » toan hoc, dong hoc
va nhan » van nhan, va phan, va nha
ma hoi » mai hoi, xa hoi, ma hoa
tim » time

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

• Performing a fuzzy search may retrieve terms with similar spellings: tim mach hoc tap, nghien cuu mon hoc nganh khong thuoc ma hoi ((va nhan) or (ca nhan)) van~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tim mach hoc tap, nghien cuu mon hoc nganh khong thuoc ma hoi ((va nhan) OR (ca nhan)) van.
• Adding a wildcard symbol may retrieve word variants: tim mach hoc tap, nghien cuu mon hoc nganh khong thuoc ma hoi ((va nhan) or (ca nhan)) van*.