Perhaps you should try some spelling variations:
nghien huu » nghien cuu, nguyen huu, nhiem huu
nhanh khoa » nhan khoa, nganh khoa, hang khoa
hoc nhanh » hoc nganh, hoc phan
tru tinh » trieu tinh, cuu tinh
tinh hoc » sinh hoc, tin hoc, hinh hoc
khoa hoc » hoa hoc
hoi cau » hoc cau, hoa cau, hoi cac
hoi chu » hoi chuc
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: tru tinh hoc tap, nghien huu co hoc nhanh khoa hoc xa ((hoi cau) OR (hoi chu)) luan van~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tru tinh hoc tap, nghien huu co hoc nhanh khoa hoc xa ((hoi cau) OR (hoi chu)) luan van".
• Adding a wildcard symbol may retrieve word variants: tru tinh hoc tap, nghien huu co hoc nhanh khoa hoc xa ((hoi cau) OR (hoi chu)) luan van*.