Perhaps you should try some spelling variations:
doanh doanh » toan doanh, doanh hoan, doanh thanh
chieu sach » chinh sach, chiet tach, chieu sang
cua thuong » cua truong, cua phuong, ca thuong
duong vanh » duong van, duong manh, duong xanh
cua chung » cua nhung, luan chung, luat chung
vanh luan » van luan, doanh luan, tranh luan
ho chieu » theo chieu, hoc thieu, mot chieu

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

• Performing a fuzzy search may retrieve terms with similar spellings: ho chieu sach - doanh doanh ((cua thuong) or (cua chung)) duong vanh luan van~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho chieu sach - doanh doanh ((cua thuong) OR (cua chung)) duong vanh luan van.
• Adding a wildcard symbol may retrieve word variants: ho chieu sach - doanh doanh ((cua thuong) or (cua chung)) duong vanh luan van*.