Perhaps you should try some spelling variations:
nhung cong » dung cong, thong cong, hang cong
chieu xanh » chieu sach, chieu sang, chieu tinh
hieu lang » chieu sang, hieu quang, nhieu tang
nhan dang » nhan dan, phan dang
tran dang » tran quang, tran hoang, tranh hang
cua nhung » va nhung
cong dan » cong san, cong tan, huong dan
dan toan » van toan, dan than, manh toan
toan cau » toan cao, toan ban, toan tap

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: theo ((hieu lang) or (chieu xanh)) - ((nhan dang) OR (tran dang)) cua nhung cong dan toan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo ((hieu lang) OR (chieu xanh)) - ((nhan dang) OR (tran dang)) cua nhung cong dan toan cau.
• The words AND, OR and NOT may confuse the search; try adding quotes: "theo ((hieu lang) or (chieu xanh)) - ((nhan dang) OR (tran dang)) cua nhung cong dan toan cau".
• Adding a wildcard symbol may retrieve word variants: theo ((hieu lang) or (chieu xanh)) - ((nhan dang) OR (tran dang)) cua nhung cong dan toan cau*.