Perhaps you should try some spelling variations:
khoi nganh » hoc nganh, moi nganh
hoa nganh » hoc nganh, hoa doanh, hoa thanh
mach hoc » cach hoc, dich hoc, anh hoc
cuu cong » cua cong, thu cong, cac cong
khoa hoc » hoa hoc
nhan van » nhan dan, nhan va, phan van
tu mach » tu cach, tu manh, tu hach
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 cuu cong ((hoa nganh) OR (khoi nganh)) khoa hoc xa hoi ca nhan van~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu mach hoc tap, nghien cuu cong ((hoa nganh) OR (khoi nganh)) khoa hoc xa hoi ca nhan van".
• Adding a wildcard symbol may retrieve word variants: tu mach hoc tap, nghien cuu cong ((hoa nganh) OR (khoi nganh)) khoa hoc xa hoi ca nhan van*.