Perhaps you should try some spelling variations:
nghien huu » nghien cuu, nguyen huu, nhiem huu
doan phan » doanh phan, toan phan, dan phan
chu dich » chu tich, chu dinh, chu thich
dich hoc » sinh hoc, hinh hoc, tinh hoc
huu toan » huu tuan, cuu toan, huy toan
toan hoa » toan hoat, toan hoc, toan ho
hoi doan » hoi dan, hoi doai, hoa doanh
phan van » pham van, thanh van, luan 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: chu dich hoc tap, nghien huu toan hoa ((doanh khoa) OR (toan khoa)) hoc xa hoi doan phan van~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "chu dich hoc tap, nghien huu toan hoa ((doanh khoa) OR (toan khoa)) hoc xa hoi doan phan van".
• Adding a wildcard symbol may retrieve word variants: chu dich hoc tap, nghien huu toan hoa ((doanh khoa) OR (toan khoa)) hoc xa hoi doan phan van*.