Perhaps you should try some spelling variations:
hanh tranh » canh tranh, hanh trang, lanh tranh
theo chieu » theo tieu, ho chieu, theo chu
hanh trinh » canh tranh, hanh chinh
dang cong » dung cong
chao chu » cho chu, cua chu, cao cho
cong dan » cong san, cong tan, huong dan
dan toan » van toan, dan than, manh toan
toan cau » toan cao, toan ban, toan tap
va dang » van dang, va nang, va lang

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 (chao chu)) sang - ((hanh tranh) or (hanh trinh)) va dang cong dan toan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((theo chieu) OR (chao chu)) sang - ((hanh tranh) OR (hanh trinh)) va dang cong dan toan cau.
• Adding a wildcard symbol may retrieve word variants: ((theo chieu) or (chao chu)) sang - ((hanh tranh) or (hanh trinh)) va dang cong dan toan cau*.