Perhaps you should try some spelling variations:
chieu xanh » chieu sach, chieu sang, chieu tinh
cuong danh » huong dan, cuong linh, cong dan
doi chieu » doc hieu, doi chi, ho chieu
cuon danh » cuoi dan, cum danh, cuon sach
tang cua » mang cua, hang cua, tang luan
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 - hanh ((tang cua) or (trong cac)) nhung ((cuong danh) OR (cuon danh)) toan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doi chieu xanh - hanh ((tang cua) OR (trong cac)) nhung ((cuong danh) OR (cuon danh)) toan cau.
• The words AND, OR and NOT may confuse the search; try adding quotes: "doi chieu xanh - hanh ((tang cua) or (trong cac)) nhung ((cuong danh) OR (cuon danh)) toan cau".
• Adding a wildcard symbol may retrieve word variants: doi chieu xanh - hanh ((tang cua) or (trong cac)) nhung ((cuong danh) OR (cuon danh)) toan cau*.