Perhaps you should try some spelling variations:
chieu xanh » chieu sach, chieu sang, chieu tinh
canh trinh » canh tranh, hanh trinh, canh tinh
thong cong » trong cong, tong cong, thong thong
trinh he » trinh han, trinh hoa, trinh thi
cong sat » cong suat, cong san, cong hat
sat phan » sat nhan, vat phan, xuat phan

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)) - canh trinh he thong cong sat phan tu~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo ((chieu xanh) OR (chinh sach)) - canh trinh he thong cong sat phan tu.
• Adding a wildcard symbol may retrieve word variants: theo ((chieu xanh) or (chinh sach)) - canh trinh he thong cong sat phan tu*.