Perhaps you should try some spelling variations:
chieu xanh » chieu sach, chieu sang, chieu tinh
hoang manh » hoang minh, hoang anh, hoang xanh
hanh manh » hanh mang, lanh manh, thanh minh
dung cong » dung trong
cong dan » cong san, cong tan, huong dan
dan toan » van toan, dan than, manh toan
toan cao » toan ban, toan tap
va dung » van dung, va duong, vat dung

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: theo ((chieu xanh) or (dieu hanh)) - ((hanh manh) OR (hoang manh)) va dung cong dan toan cao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo ((chieu xanh) OR (dieu hanh)) - ((hanh manh) OR (hoang manh)) va dung cong dan toan cao.
• The words AND, OR and NOT may confuse the search; try adding quotes: "theo ((chieu xanh) or (dieu hanh)) - ((hanh manh) OR (hoang manh)) va dung cong dan toan cao".
• Adding a wildcard symbol may retrieve word variants: theo ((chieu xanh) or (dieu hanh)) - ((hanh manh) OR (hoang manh)) va dung cong dan toan cao*.