Perhaps you should try some spelling variations:
chieu xanh » chieu sach, chieu sang, chieu tinh
nhung cong » dung cong, thong cong, hang cong
hieu lang » chieu sang, hieu quang, nhieu tang
chinh tai » chinh tri
cong danh » cuong danh, cong dan, cong thanh
chinh va » chinh ta, hanh va, tinh va
danh van » doanh van, dang van, dinh van

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 xanh) or (hieu lang)) - hanh ((chinh va) or (chinh tai)) nhung cong danh van ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho ((chieu xanh) OR (hieu lang)) - hanh ((chinh va) OR (chinh tai)) nhung cong danh van ban.
• Adding a wildcard symbol may retrieve word variants: ho ((chieu xanh) or (hieu lang)) - hanh ((chinh va) or (chinh tai)) nhung cong danh van ban*.