Perhaps you should try some spelling variations:
nghien huu » nghien cuu, nguyen huu, nhiem huu
doanh khoa » toan khoa
goc doanh » hoa doanh, voi doanh, von doanh
khoa hoc » hoa hoc
van phan » van phong, van thanh, luan phan
phan van » pham van, thanh van, luan van
su sach » so sach, vu sach
doi tai » dai tai, doi tac, moi tai
hoi tai » hoc tai, hoi trac
huu mot » cuu mot, huy mot, hieu mot
hoi van » hoi va, hoi dan, hai van
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: su sach ((doi tai) OR (hoi tai)), nghien huu mot goc doanh khoa hoc xa hoi van phan van~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "su sach ((doi tai) OR (hoi tai)), nghien huu mot goc doanh khoa hoc xa hoi van phan van".
• Adding a wildcard symbol may retrieve word variants: su sach ((doi tai) OR (hoi tai)), nghien huu mot goc doanh khoa hoc xa hoi van phan van*.