Perhaps you should try some spelling variations:
doanh doanh » toan doanh, doanh hoan, doanh thanh
trien kinh » tri kinh, trinh kinh, trien dich
hoc trien » hoc tren, hoc tien, hoc truyen
luan dang » luan danh, luan dong, luan tang
luan nang » luan van, van nang, luan san
cong dan » cong san, cong tan, huong dan
toan tai » doanh tai, toan ban, toan cao
toan tap » toan ban

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

• Performing a fuzzy search may retrieve terms with similar spellings: hoc trien kinh - doanh doanh ((luan dang) OR (luan nang)) cong dan ((toan tai) or (toan tap))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc trien kinh - doanh doanh ((luan dang) OR (luan nang)) cong dan ((toan tai) OR (toan tap)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc trien kinh - doanh doanh ((luan dang) OR (luan nang)) cong dan ((toan tai) or (toan tap))".
• Adding a wildcard symbol may retrieve word variants: hoc trien kinh - doanh doanh ((luan dang) OR (luan nang)) cong dan ((toan tai) or (toan tap))*.