Perhaps you should try some spelling variations:
nhung cong » dung cong, thong cong, hang cong
chu xanh » chieu xanh, chua xang, chuc danh
chu manh » ho manh, chu han, chu van
thang va » hang va, trang va, thong va
cong dan » cong san, cong tan, huong dan
tang va » trang va, tang van, tang vat
dan van » dang van, doan van, dao van

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: theo ((chu xanh) OR (chu manh)) - hanh ((tang va) OR (thang va)) nhung cong dan van ban~.
• Adding a wildcard symbol may retrieve word variants: theo ((chu xanh) or (chu manh)) - hanh ((tang va) or (thang va)) nhung cong dan van ban*.