Perhaps you should try some spelling variations:
thieu sang » chieu sang, thieu khang, thieu quang
hanh trinh » canh tranh, hanh chinh
hoc thieu » toc thieu, hoc hien
trinh cua » tinh cua, trinh luat, trinh quan
cua nhung » va nhung
cong dan » cong san, cong tan, 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: hoc thieu sang - hanh trinh cua nhung ((((cong dan) OR (cong dong))) or (huong dan)) toan ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc thieu sang - hanh trinh cua nhung ((((cong dan) OR (cong dong))) OR (huong dan)) toan ban.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc thieu sang - hanh trinh cua nhung ((((cong dan) OR (cong dong))) or (huong dan)) toan ban".
• Adding a wildcard symbol may retrieve word variants: hoc thieu sang - hanh trinh cua nhung ((((cong dan) OR (cong dong))) or (huong dan)) toan ban*.