Perhaps you should try some spelling variations:
hanh tranh » hanh trinh, hanh trang, lanh tranh
dung cong » dung trong
theo chu » theo chieu, cho chu, chao chu
chu sach » cau sach, thu sach, chieu sach
qua dung » quang dung, su dung, qua song
doan cau » doan dau, doan cap, doanh chau
toan cau » toan cao, toan ban, toan tap

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

• If you are trying to use Boolean operators, they must be ALL CAPS: theo chu sach - ((hanh tranh) OR (canh tranh)) qua dung cong ty ((doan cau) OR (toan cau))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "theo chu sach - ((hanh tranh) or (canh tranh)) qua dung cong ty ((doan cau) OR (toan cau))~".
• Adding a wildcard symbol may retrieve word variants: theo chu sach - ((hanh tranh) or (canh tranh)) qua dung cong ty ((doan cau) OR (toan cau))*.