Perhaps you should try some spelling variations:
theo chieu » theo tieu, theo chu, thi chieu
hanh tranh » canh tranh, hanh trinh, hanh trang
tranh cua » doanh cua, manh cua
tong cong » trong cong, cong cong, dung cong
ban thanh » ban hanh, ban hang
thanh lap » thanh san, phan lap, thanh hai
ho chieu » hoc thieu, doi chieu, mot chieu
dong son » dong von, dong san, hoang son

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 tranh cua ((dong son) or (tong cong)) ban thanh lap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((theo chieu) OR (ho chieu)) sach - hanh tranh cua ((dong son) OR (tong cong)) ban thanh lap.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((theo chieu) OR (ho chieu)) sach - hanh tranh cua ((dong son) or (tong cong)) ban thanh lap".
• Adding a wildcard symbol may retrieve word variants: ((theo chieu) OR (ho chieu)) sach - hanh tranh cua ((dong son) or (tong cong)) ban thanh lap*.