Perhaps you should try some spelling variations:
luong theo » luong thi
theo nganh » tao nganh, thuong nganh
nganh khoa » nganh hoa, nganh khong, doanh khoa
cuu luong » cuu long, cu luong, cuu tuong
sach hoc » cach hoc, sach hoi, mach hoc
khoa hoc » hoa hoc
phan van » thanh van, luan van, tran van
tu sach » thu sach, su sach, te sach
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 sach hoc tap, nghien cuu luong theo nganh khoa hoc xa hoi va ((phan van) OR (pham van))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu sach hoc tap, nghien cuu luong theo nganh khoa hoc xa hoi va ((phan van) OR (pham van))".
• Adding a wildcard symbol may retrieve word variants: tu sach hoc tap, nghien cuu luong theo nganh khoa hoc xa hoi va ((phan van) OR (pham van))*.