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
nhan van » nhan dan, nhan va, phan van
va nhan » van nhan, ca nhan, va phan
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 nhan van~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu ((mach hoc) OR (cach hoc)) tap, nghien cuu toan khoa nganh nang hoc xa hoi va nhan 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 nhan van*.