Perhaps you should try some spelling variations:
chieu sang » chieu sach, hieu lang, nhieu tang
chieu xanh » chieu sach, chieu tinh, hieu manh
tranh hang » tran hoang, tran hong
tranh cua » doanh cua, manh cua
dang cong » dung cong
trinh han » trinh quan
cua dang » cua cong, cua ban
cong can » cong san, cong tan, cong dan

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

• If you are trying to use Boolean operators, they must be ALL CAPS: ho ((chieu sang) OR (chieu xanh)) - canh tranh cua dang cong can ((tranh hang) OR (trinh han))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "ho ((chieu sang) OR (chieu xanh)) - canh tranh cua dang cong can ((tranh hang) or (trinh han))~".
• Adding a wildcard symbol may retrieve word variants: ho ((chieu sang) OR (chieu xanh)) - canh tranh cua dang cong can ((tranh hang) or (trinh han))*.