Perhaps you should try some spelling variations:
chieu xanh » chieu sach, chieu sang, chieu tinh
thong cua » thong quan, thong tu, huong cua
bang cong » dang cong, bang song, hang cong
chu xanh » chu manh, chua xang, chuc danh
cong dan » cong san, cong tan, huong dan
dan than » dan chan, ban than, van than
than cau » toan cau, phan cau, than cap

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: chao ((chu xanh) OR (chieu xanh)) - hanh ((thong cua) OR (dung luan)) bang cong dan than cau~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "chao ((chu xanh) OR (chieu xanh)) - hanh ((thong cua) or (dung luan)) bang cong dan than cau~".
• Adding a wildcard symbol may retrieve word variants: chao ((chu xanh) OR (chieu xanh)) - hanh ((thong cua) or (dung luan)) bang cong dan than cau*.