Perhaps you should try some spelling variations:
hanh tranh » canh tranh, hanh trang, lanh tranh
chieu xanh » chieu sach, chieu sang, chieu tinh
hanh trinh » canh tranh, hanh chinh
khong cong » thong cong, khong cang, chong cong
hieu lang » chieu sang, hieu quang, nhieu tang
cua khong » hua khong, cua phuong, cua thuong
cong dan » cong san, cong tan, huong dan
dan than » dan chan, ban than, van than
than man » than ma, thanh san, tran manh

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: hoc ((hieu lang) or (chieu xanh)) - ((hanh tranh) OR (hanh trinh)) cua khong cong dan than man~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc ((hieu lang) OR (chieu xanh)) - ((hanh tranh) OR (hanh trinh)) cua khong cong dan than man*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc ((hieu lang) or (chieu xanh)) - ((hanh tranh) OR (hanh trinh)) cua khong cong dan than man*".