Perhaps you should try some spelling variations:
nganh khong » nganh cong, nhanh chong, nganh nong
khong hoc » khung hoc, thong hoc, khong thuoc
mach hoc » cach hoc, dich hoc, anh hoc
toan hoc » toan khoa, van hoc, hoa hoc
tu mach » tu cach, tu manh, tu hach
mon hoc » dong hoc
va phan » van phan, va phat, va phap
phan va » phan van, nhan va, han va
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 mach hoc tap, nghien cuu ((mon hoc) or (toan hoc)) nganh khong hoc xa hoi va phan va~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu mach hoc tap, nghien cuu ((mon hoc) OR (toan hoc)) nganh khong hoc xa hoi va phan va.
• Adding a wildcard symbol may retrieve word variants: tu mach hoc tap, nghien cuu ((mon hoc) or (toan hoc)) nganh khong hoc xa hoi va phan va*.