Perhaps you should try some spelling variations:
doanh khoa » toan khoa
hoc doanh » hoa doanh, hoc danh, hoc dan
thi bach » thi bich, thi hanh, thi anh
khoa hoc » hoa hoc
cau pham » cau cham, cau phan, cau phap
te bach » te sach
mai tap » bai tap, mai tat, mai tan
hoi cau » hoi chu, hoc cau, hoa cau
mo hoc » mon hoc, co hoc
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: ((te bach) or (thi bach)) mai tap, nghien cuu mo hoc doanh khoa hoc xa hoi cau pham van~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((te bach) OR (thi bach)) mai tap, nghien cuu mo hoc doanh khoa hoc xa hoi cau pham van.
• Adding a wildcard symbol may retrieve word variants: ((te bach) or (thi bach)) mai tap, nghien cuu mo hoc doanh khoa hoc xa hoi cau pham van*.