Perhaps you should try some spelling variations:
nhung cong » dung cong, thong cong, hang cong
tranh cua » doanh cua
chu xanh » chieu xanh, chua xang, chuc danh
chu manh » ho manh, chu han, chu van
manh cua » doanh cua, ban cua
cong tan » cong tac, cong san, cong thanh
tan than » tan thanh, tan tran, ban than
than man » than ma, thanh san, tran manh

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 (chu manh)) - hanh ((tranh cua) OR (manh cua)) nhung cong tan than man~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "chao ((chu xanh) OR (chu manh)) - hanh ((tranh cua) or (manh cua)) nhung cong tan than man~".
• Adding a wildcard symbol may retrieve word variants: chao ((chu xanh) OR (chu manh)) - hanh ((tranh cua) or (manh cua)) nhung cong tan than man*.