Perhaps you should try some spelling variations:
chieu sang » chieu sach, chieu xanh, hieu lang
hanh trang » thanh trung, canh tranh, hanh trinh
trang xay » trong xay, trang xa, trang va
ho chieu » theo chieu, hoc thieu, doi chieu
cong dan » cong tan, cong dong, cong tac
cong san » cong tac
toan ban » van ban

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 sang - hanh trang xay dung ((((cong dan) OR (huong dan))) or (cong san)) toan ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho chieu sang - hanh trang xay dung ((((cong dan) OR (huong dan))) OR (cong san)) toan ban.
• The words AND, OR and NOT may confuse the search; try adding quotes: "ho chieu sang - hanh trang xay dung ((((cong dan) OR (huong dan))) or (cong san)) toan ban".
• Adding a wildcard symbol may retrieve word variants: ho chieu sang - hanh trang xay dung ((((cong dan) OR (huong dan))) or (cong san)) toan ban*.