Perhaps you should try some spelling variations:
hanh tranh » canh tranh, hanh trinh, lanh tranh
theo chieu » theo tieu, ho chieu, theo chu
hanh trang » thanh trung, canh tranh, hanh trinh
nang cong » nang song, dang cong, bang 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 nang » van nang, da nang, cam nang

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 trang)) va nang 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 trang)) va nang cong dan toan cau.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((theo chieu) or (chao chu)) sang - ((hanh tranh) OR (hanh trang)) va nang cong dan toan cau".
• Adding a wildcard symbol may retrieve word variants: ((theo chieu) or (chao chu)) sang - ((hanh tranh) OR (hanh trang)) va nang cong dan toan cau*.