Perhaps you should try some spelling variations:
chieu xanh » chieu sach, chieu tinh, hieu manh
chieu sang » chieu sach, hieu lang, nhieu tang
dang nguoi » dung nguoi, nang nguoi, tang nguoi
tranh cac » thanh cac, tranh cai, tranh chap
trinh cac » trinh cau, trinh chat, trinh chao
nguoi dan » nguoi dao, nguoi san, nguong dan
dan toan » van toan, dan than, manh toan
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) OR (chieu sang)) - canh ((tranh cac) or (trinh cac)) dang nguoi dan toan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doi ((chieu xanh) OR (chieu sang)) - canh ((tranh cac) OR (trinh cac)) dang nguoi dan toan cau.
• The words AND, OR and NOT may confuse the search; try adding quotes: "doi ((chieu xanh) OR (chieu sang)) - canh ((tranh cac) or (trinh cac)) dang nguoi dan toan cau".
• Adding a wildcard symbol may retrieve word variants: doi ((chieu xanh) OR (chieu sang)) - canh ((tranh cac) or (trinh cac)) dang nguoi dan toan cau*.