Perhaps you should try some spelling variations:
thanh tuong » thanh thuong, thanh tung, thanh huong
chieu xanh » chieu sach, chieu sang, chieu tinh
ho chieu » theo chieu, hoc thieu, doi chieu
tuong va » truong va, thuong va, luong va
cong dan » cong tan, cong dong, cong tac
cong san » cong tac
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: ho chieu xanh - thanh tuong va nhung ((((cong dan) OR (cong san))) or (huong dan)) toan cao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho chieu xanh - thanh tuong va nhung ((((cong dan) OR (cong san))) OR (huong dan)) toan cao.
• The words AND, OR and NOT may confuse the search; try adding quotes: "ho chieu xanh - thanh tuong va nhung ((((cong dan) OR (cong san))) or (huong dan)) toan cao".
• Adding a wildcard symbol may retrieve word variants: ho chieu xanh - thanh tuong va nhung ((((cong dan) OR (cong san))) or (huong dan)) toan cao*.