Perhaps you should try some spelling variations:
nganh khoa » nganh khong, doanh khoa, anh khoa
nganh hoa » thanh hoa, khanh hoa, danh hoa
nhan dan » phan dau, gian dan, nhan tai
te bach » te sach, thi bach
mai tap » bai tap, mai tat, mai tan
hoc dai » hoc dan
dai hoi » dai hoc, dai hai, dai moi
va nhan » van nhan, ca nhan, va phan
mo hoc » mon hoc, co hoc

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: te bach mai tap, nghien cuu mo hoc ((nganh khoa) OR (nganh hoa)) hoc dai hoi va nhan dan~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "te bach mai tap, nghien cuu mo hoc ((nganh khoa) OR (nganh hoa)) hoc dai hoi va nhan dan".
• Adding a wildcard symbol may retrieve word variants: te bach mai tap, nghien cuu mo hoc ((nganh khoa) OR (nganh hoa)) hoc dai hoi va nhan dan*.