Perhaps you should try some spelling variations:
thieu sang » chieu sang, thieu khang, thieu quang
hanh trung » thanh trung, hanh trang, manh trung
hoc thieu » toc thieu, hoc hien
trung ha » trung hoc, trung tam, trung cap
cong dan » cong tan, huong dan, cong dong
cong tac » cong ty
ha lang » hoa lang, ha tang, va lang
can cau » van cau, ban cau, ca cau

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 trung ha lang ((cong dan) or (((cong san) OR (cong tac)))) can cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc thieu sang - hanh trung ha lang ((cong dan) OR (((cong san) OR (cong tac)))) can cau.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc thieu sang - hanh trung ha lang ((cong dan) or (((cong san) OR (cong tac)))) can cau".
• Adding a wildcard symbol may retrieve word variants: hoc thieu sang - hanh trung ha lang ((cong dan) or (((cong san) OR (cong tac)))) can cau*.