Perhaps you should try some spelling variations:
doanh doanh » toan doanh, doanh thanh, dong doanh
theo chieu » theo tieu, theo chu, thi chieu
hanh trang » thanh trung, canh tranh, hanh trinh
cong doanh » cong danh, cong doan, dong doanh
doanh hoan » doanh khoa, doanh nhan, doanh luan
hanh mang » nhanh mang, nhanh lang, thanh hang
luan cong » luat cong, luong cong, luan chung
ho chieu » hoc thieu, doi chieu, mot chieu
hoan cau » toan cau, hoa cau, hoang cao

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((theo chieu) OR (ho chieu)) sach - ((hanh mang) or (hanh trang)) luan cong doanh doanh hoan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((theo chieu) OR (ho chieu)) sach - ((hanh mang) OR (hanh trang)) luan cong doanh doanh hoan cau.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((theo chieu) OR (ho chieu)) sach - ((hanh mang) or (hanh trang)) luan cong doanh doanh hoan cau".
• Adding a wildcard symbol may retrieve word variants: ((theo chieu) OR (ho chieu)) sach - ((hanh mang) or (hanh trang)) luan cong doanh doanh hoan cau*.