Perhaps you should try some spelling variations:
khoa nganh » khoi nganh, hoc nganh
nganh nang » nganh nong, ganh nang, ngan hang
mach hoc » dich hoc, anh hoc, bac hoc
cach hoc » cach thuc, cach thoi, dich hoc
cuu toan » cuu hoan, cua toan, huu toan
nang hoc » nang doc, nang luc, dong hoc
phan van » pham van, thanh van, luan van
va phan » van phan, va phat, va phap
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) or (cach hoc)) tap, nghien cuu toan khoa nganh nang hoc xa hoi va phan van~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu ((mach hoc) OR (cach hoc)) tap, nghien cuu toan khoa nganh nang hoc xa hoi va phan van.
• Adding a wildcard symbol may retrieve word variants: tu ((mach hoc) or (cach hoc)) tap, nghien cuu toan khoa nganh nang hoc xa hoi va phan van*.