Perhaps you should try some spelling variations:
nhieu tang » chieu sang, hieu lang, nhiet nang
hanh tranh » hanh trinh, hanh trang, lanh tranh
cua nhung » va nhung
ho nhieu » hop nhieu, ho chieu, he nhieu
cong dan » cong tan, huong dan, cong dong
cong san » cong tac
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: ho nhieu tang - ((hanh tranh) or (canh tranh)) cua nhung ((cong dan) OR (cong san)) toan cao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho nhieu tang - ((hanh tranh) OR (canh tranh)) cua nhung ((cong dan) OR (cong san)) toan cao.
• The words AND, OR and NOT may confuse the search; try adding quotes: "ho nhieu tang - ((hanh tranh) or (canh tranh)) cua nhung ((cong dan) OR (cong san)) toan cao".
• Adding a wildcard symbol may retrieve word variants: ho nhieu tang - ((hanh tranh) or (canh tranh)) cua nhung ((cong dan) OR (cong san)) toan cao*.