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
luat anh » luat canh, luat danh, luat hanh
cong dan » cong tan, huong dan, cong dong
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: hoc thieu sang - hanh trinh luat anh ((cong dan) OR (cong san)) toan cao~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc thieu sang - hanh trinh luat anh ((cong dan) OR (cong san)) toan cao".
• Adding a wildcard symbol may retrieve word variants: hoc thieu sang - hanh trinh luat anh ((cong dan) OR (cong san)) toan cao*.