Perhaps you should try some spelling variations:
nhung cong » dung cong, thong cong, hang cong
hieu lang » chieu sang, hieu quang, nhieu tang
hanh hang » thanh hang, hang hang, hanh han
cua nhung » va nhung
chu xanh » chu manh, chieu xanh, chua xang
hang cua » mang cua, hang ca, huong cua
cong dan » cong san, cong tan, huong dan
toan cau » toan cao, toan tap, toan tai
toan ban » van ban

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 (hieu lang)) - hanh hang cua nhung cong dan ((toan cau) OR (toan ban))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "theo ((chu xanh) or (hieu lang)) - hanh hang cua nhung cong dan ((toan cau) OR (toan ban))~".
• Adding a wildcard symbol may retrieve word variants: theo ((chu xanh) or (hieu lang)) - hanh hang cua nhung cong dan ((toan cau) OR (toan ban))*.