Perhaps you should try some spelling variations:
nghien cua » nghien cuu, nghiep cua, nghiep vua
doanh khoa » toan khoa
hoa doanh » toan doanh, hoa dan
tap dich » cap dich, tam dich, phap dich
cua dong » chua dong, cua cong, cua dang
dong hoa » dong hoc, dong co
khoa hoc » hoa hoc
te dich » ve dich, tam dich, tri dich
va luan » vay luan, van luan, va quan
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 dich) OR (tap dich)) hoc tap, nghien cua dong hoa doanh khoa hoc xa hoi va luan van~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((te dich) OR (tap dich)) hoc tap, nghien cua dong hoa doanh khoa hoc xa hoi va luan van".
• Adding a wildcard symbol may retrieve word variants: ((te dich) OR (tap dich)) hoc tap, nghien cua dong hoa doanh khoa hoc xa hoi va luan van*.