Perhaps you should try some spelling variations:
khoa nganh » khoi nganh, hoc nganh
nganh nang » nganh nong, ganh nang, ngan hang
cuu toan » cuu hoan, cua toan, huu toan
nang hoc » nang doc, nang luc, dong hoc
nhan dan » phan dau, gian dan, nhan tai
anh hoc » benh hoc, hinh hoc, anh khoa
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 ((anh hoc) OR (sinh hoc)) tap, nghien cuu toan khoa nganh nang hoc xa hoi va nhan dan~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu ((anh hoc) OR (sinh hoc)) tap, nghien cuu toan khoa nganh nang hoc xa hoi va nhan dan".
• Adding a wildcard symbol may retrieve word variants: tu ((anh hoc) OR (sinh hoc)) tap, nghien cuu toan khoa nganh nang hoc xa hoi va nhan dan*.