Perhaps you should try some spelling variations:
nganh khoa » nganh hoa, nganh khong, doanh khoa
tuong hoc » truong hoc, tuong ho, duong hoc
thong hoc » thuong hoc, thong hoa, thong hoi
mach hoc » cach hoc, dich hoc, anh hoc
khoa hoc » hoa hoc
giai dan » giai doan, gian dan, giai han
tu mach » tu cach, tu manh, tu hach
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 mach hoc tap, nghien cuu ((tuong hoc) or (thong hoc)) nganh khoa hoc xa hoi va giai dan~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu mach hoc tap, nghien cuu ((tuong hoc) OR (thong hoc)) nganh khoa hoc xa hoi va giai dan.
• Adding a wildcard symbol may retrieve word variants: tu mach hoc tap, nghien cuu ((tuong hoc) or (thong hoc)) nganh khoa hoc xa hoi va giai dan*.