Perhaps you should try some spelling variations:
hanh tranh » canh tranh, hanh trinh, hanh trang
lieu tinh » trieu tinh, diep tinh, bien tinh
tranh cua » doanh cua, manh cua
cho lieu » cho dieu, co lieu, ho lieu
cong dan » cong tan, cong dong, cong tac
cong san » cong tac
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: cho lieu tinh - hanh tranh cua cong ((((cong dan) OR (huong dan))) OR (cong san)) toan cau~.
• Adding a wildcard symbol may retrieve word variants: cho lieu tinh - hanh tranh cua cong ((((cong dan) or (huong dan))) or (cong san)) toan cau*.