Perhaps you should try some spelling variations:
chieu xanh » chieu sach, chieu sang, chieu tinh
nhung cong » thong cong, hang cong, nhung don
hanh tang » hanh trang, anh tang, hanh mang
dung cong » dung trong
chu xanh » chu manh, chua xang, chuc danh
tang cua » mang cua, hang cua, tang luan
dang van » hoang van, hang va

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

• Performing a fuzzy search may retrieve terms with similar spellings: theo ((chu xanh) or (chieu xanh)) - hanh tang cua ((nhung cong) OR (dung cong)) dang van ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo ((chu xanh) OR (chieu xanh)) - hanh tang cua ((nhung cong) OR (dung cong)) dang van ban.
• The words AND, OR and NOT may confuse the search; try adding quotes: "theo ((chu xanh) or (chieu xanh)) - hanh tang cua ((nhung cong) OR (dung cong)) dang van ban".
• Adding a wildcard symbol may retrieve word variants: theo ((chu xanh) or (chieu xanh)) - hanh tang cua ((nhung cong) OR (dung cong)) dang van ban*.