Perhaps you should try some spelling variations:
hanh trinh » canh tranh, hanh chinh
chua xang » chua nang, chuc nang, chu bang
cho chua » cho chu, cho cua, ho chua
anh tang » anh bang, anh dang, anh 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: cho chua xang - ((anh tang) 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: cho chua xang - ((anh tang) 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: "cho chua xang - ((anh tang) or (hanh trinh)) va nhung ((cong dan) OR (cong san)) toan cau".
• Adding a wildcard symbol may retrieve word variants: cho chua xang - ((anh tang) or (hanh trinh)) va nhung ((cong dan) OR (cong san)) toan cau*.