Perhaps you should try some spelling variations:
chieu xanh » chieu sach, chieu sang, chieu tinh
canh trinh » canh tranh, hanh trinh, canh tinh
doi chieu » doc hieu, doi chi, ho chieu
trinh cac » trinh cau, trinh chat, trinh chao
cac dang » cao dang, cac dan, cac cong
ngon dan » nguong dan, nguoi dan, ngan danh
ngot dan » nguoi dan, ngoc dang, nghe dan
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: doi chieu xanh - canh trinh cac dang ((ngon dan) OR (ngot dan)) toan cau~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "doi chieu xanh - canh trinh cac dang ((ngon dan) OR (ngot dan)) toan cau".
• Adding a wildcard symbol may retrieve word variants: doi chieu xanh - canh trinh cac dang ((ngon dan) OR (ngot dan)) toan cau*.