Perhaps you should try some spelling variations:
cong thanh » dong thanh, cong trinh, cong tan
theo chieu » theo tieu, ho chieu, theo chu
tranh cua » doanh cua, manh cua
cong cong » cong dong, trong cong, dung cong
thanh van » thanh san, thanh toan, thanh phan
doc hieu » toc thieu, hoc thieu, hoc hien

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 (doc hieu)) lang - canh tranh cua cong cong thanh van ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((theo chieu) OR (doc hieu)) lang - canh tranh cua cong cong thanh van ban.
• Adding a wildcard symbol may retrieve word variants: ((theo chieu) or (doc hieu)) lang - canh tranh cua cong cong thanh van ban*.