Perhaps you should try some spelling variations:
hanh tranh » canh tranh, hanh trinh, lanh tranh
chieu sang » chieu sach, chieu xanh, nhieu tang
hanh trang » thanh trung, canh tranh, hanh trinh
nhung cong » dung cong, thong cong, hang cong
hieu lang » hieu quang, nhieu tang, hieu van
cong dan » cong san, cong tan, huong dan
dan than » dan chan, ban than, van than
than cap » khan cap, thanh lap, thanh cac

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

• Performing a fuzzy search may retrieve terms with similar spellings: ho ((chieu sang) OR (hieu lang)) - ((hanh tranh) or (hanh trang)) va nhung cong dan than cap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho ((chieu sang) OR (hieu lang)) - ((hanh tranh) OR (hanh trang)) va nhung cong dan than cap.
• The words AND, OR and NOT may confuse the search; try adding quotes: "ho ((chieu sang) OR (hieu lang)) - ((hanh tranh) or (hanh trang)) va nhung cong dan than cap".
• Adding a wildcard symbol may retrieve word variants: ho ((chieu sang) OR (hieu lang)) - ((hanh tranh) or (hanh trang)) va nhung cong dan than cap*.