Perhaps you should try some spelling variations:
chieu xanh » chieu sang, chieu tinh, hieu manh
chieu sach » chinh sach, chiet tach, chieu sang
thong cong » trong cong, tong cong, thong thong
nhan dang » nhan dan, phan dang, tran dang
cong manh » cong danh, duong manh, cong thanh
va thong » va thuong, va phuong, he thong
toan cau » toan cao, toan tap, toan tai
toan ban » van ban
dang va » dang van, dang vat, hang va

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

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