Perhaps you should try some spelling variations:
ngan chung » ngan hang, luan chung, phan chung
nha chung » cua chung, nha hang
theo chu » theo chieu, cho chu, chao chu
chu xanh » chu manh, chieu xanh, chua xang
cong ban » cong bang, cong tan, cong dan
cong san » cong tac
khan cap » khan ap, than cap, khoan cam

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 - hanh chinh ((ngan chung) OR (nha chung)) ((cong ban) OR (cong san)) khan cap~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "theo chu xanh - hanh chinh ((ngan chung) or (nha chung)) ((cong ban) OR (cong san)) khan cap~".
• Adding a wildcard symbol may retrieve word variants: theo chu xanh - hanh chinh ((ngan chung) or (nha chung)) ((cong ban) OR (cong san)) khan cap*.