Perhaps you should try some spelling variations:
nganh khoa » nganh hoa, nganh khong, doanh khoa
nghien cu » nghien cuu, nghiep cua, nghiep cau
luong thi » luong tai
thi nganh » thi ngan, khoi nganh, tai ngan
sach hoc » cach hoc, sach hoi, sach duoc
mach hoc » cach hoc, dich hoc, anh hoc
cu luong » cat luong, huy luong, do luong
khoa hoc » hoa 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: su ((sach hoc) OR (mach hoc)) tap, nghien cu luong thi nganh khoa hoc xa hoi va phan van~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "su ((sach hoc) OR (mach hoc)) tap, nghien cu luong thi nganh khoa hoc xa hoi va phan van".
• Adding a wildcard symbol may retrieve word variants: su ((sach hoc) OR (mach hoc)) tap, nghien cu luong thi nganh khoa hoc xa hoi va phan van*.