Perhaps you should try some spelling variations:
chieu xanh » chieu sach, chieu sang, chieu tinh
nhan dang » nhan dan, phan dang, tran dang
vat thong » va thong, vat trong, mat thong
cong manh » duong manh, cong thanh, hoang manh
cong danh » cuong danh, cong dan, cong thanh
dang vat » dang van, dong vat, dang nhat
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 ((chieu xanh) or (chinh sach)) - nhan dang vat thong ((cong manh) OR (cong danh)) toan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo ((chieu xanh) OR (chinh sach)) - nhan dang vat thong ((cong manh) OR (cong danh)) toan cau.
• The words AND, OR and NOT may confuse the search; try adding quotes: "theo ((chieu xanh) or (chinh sach)) - nhan dang vat thong ((cong manh) OR (cong danh)) toan cau".
• Adding a wildcard symbol may retrieve word variants: theo ((chieu xanh) or (chinh sach)) - nhan dang vat thong ((cong manh) OR (cong danh)) toan cau*.