Perhaps you should try some spelling variations:
thieu sang » chieu sang, thieu khang, thieu quang
canh trang » hanh trang, banh trang, thanh trang
hoc thieu » toc thieu, hoc hien
dung cong » dung trong
van dung » van dong, xay dung, tin dung
cong dan » cong san, cong tan, huong dan
dan toan » van toan, dan than, manh toan
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 - ((canh trang) OR (canh tranh)) van dung cong dan toan ban~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc thieu sang - ((canh trang) OR (canh tranh)) van dung cong dan toan ban".
• Adding a wildcard symbol may retrieve word variants: hoc thieu sang - ((canh trang) OR (canh tranh)) van dung cong dan toan ban*.