Perhaps you should try some spelling variations:
thien danh » thien anh, thien dang, thien thanh
chieu xanh » chieu sach, chieu sang, chieu tinh
canh manh » lanh manh, canh tranh, cach mang
manh cua » doanh cua, ban cua
cua bang » chua bang, cua ban, cua dang
cong dan » cong san, cong tan, cong dong
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: hoc ((thien danh) or (chieu xanh)) - canh manh cua bang ((cong dan) OR (huong dan)) toan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc ((thien danh) OR (chieu xanh)) - canh manh cua bang ((cong dan) OR (huong dan)) toan cau.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc ((thien danh) or (chieu xanh)) - canh manh cua bang ((cong dan) OR (huong dan)) toan cau".
• Adding a wildcard symbol may retrieve word variants: hoc ((thien danh) or (chieu xanh)) - canh manh cua bang ((cong dan) OR (huong dan)) toan cau*.