Perhaps you should try some spelling variations:
trinh duong » trinh dung, trinh phuong, dinh duong
chieu xanh » chieu sach, chieu tinh, hieu manh
chieu sang » chieu sach, hieu lang, nhieu tang
canh trinh » canh tranh, hanh trinh, canh tinh
duong dung » cuong dung, dung dung, duong dang
cong luan » cong tuan, dong luan, cong luong
tong luan » tang luan, dung luan, hang luan
phan cau » phan dau, phan cac, phan tu

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

• Performing a fuzzy search may retrieve terms with similar spellings: doi ((chieu xanh) or (chieu sang)) - canh trinh duong dung ((cong luan) OR (tong luan)) phan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doi ((chieu xanh) OR (chieu sang)) - canh trinh duong dung ((cong luan) OR (tong luan)) phan cau*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "doi ((chieu xanh) or (chieu sang)) - canh trinh duong dung ((cong luan) OR (tong luan)) phan cau*".