Perhaps you should try some spelling variations:
hanh trinh » canh tranh, hanh chinh
hanh trang » thanh trung, canh tranh, minh trang
theo chua » theo chu, ho chua, cheo cua
chua nang » chuc nang, chua xang, kha nang
cong dan » cong tan, huong dan, cong dong
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.

• Performing a fuzzy search may retrieve terms with similar spellings: theo chua nang - ((hanh trang) OR (hanh trinh)) va nhung ((cong dan) or (cong san)) toan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo chua nang - ((hanh trang) OR (hanh trinh)) va nhung ((cong dan) OR (cong san)) toan cau.
• The words AND, OR and NOT may confuse the search; try adding quotes: "theo chua nang - ((hanh trang) OR (hanh trinh)) va nhung ((cong dan) or (cong san)) toan cau".
• Adding a wildcard symbol may retrieve word variants: theo chua nang - ((hanh trang) OR (hanh trinh)) va nhung ((cong dan) or (cong san)) toan cau*.