Perhaps you should try some spelling variations:
nghien cua » nghiep cua, nghiep vua, nghe cua
nganh khoa » nganh hoa, nganh khong, doanh khoa
hoc nganh » hoc nhanh
mach hoc » cach hoc, dich hoc, anh hoc
cong hoc » dong hoc, cong hoa, cong coc
khoa hoc » hoa hoc
tu mach » tu cach, tu manh, tu hach
ca luan » cu luan, ca lua, ca quan
hoc xa » hoc ma
hoi ca » hoi cua, hoi cac, hoi cau

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 tap, ((nghien cua) OR (nghien cuu)) cong hoc nganh khoa hoc xa hoi ca luan van~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu mach hoc tap, ((nghien cua) OR (nghien cuu)) cong hoc nganh khoa hoc xa hoi ca luan van".
• Adding a wildcard symbol may retrieve word variants: tu mach hoc tap, ((nghien cua) OR (nghien cuu)) cong hoc nganh khoa hoc xa hoi ca luan van*.