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
van nhan » van phan, van thanh, danh nhan
anh hoc » sinh hoc, benh hoc, hinh hoc
va nhan » ca nhan, va phan, va nha
tu anh » tu hanh, tu manh, thu anh
luc xa » tuc xa, buc xa, luc va

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 tap, nghien cuu toan khoa nganh nang luc xa hoi ((va nhan) OR (van nhan)) van~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu anh hoc tap, nghien cuu toan khoa nganh nang luc xa hoi ((va nhan) OR (van nhan)) van".
• Adding a wildcard symbol may retrieve word variants: tu anh hoc tap, nghien cuu toan khoa nganh nang luc xa hoi ((va nhan) OR (van nhan)) van*.