Perhaps you should try some spelling variations:
chieu xanh » chieu sach, chieu tinh, hieu manh
chieu sang » chieu sach, hieu lang, nhieu tang
cong trong » cong thuong, duong trong, cong trinh
quang dung » quang trung, cuong dung
dan thanh » dang thanh, danh thanh, ban thanh
thanh mau » hanh mau, thanh san, thanh hai

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

• Performing a fuzzy search may retrieve terms with similar spellings: ho ((chieu xanh) or (chieu sang)) - cong trong ((quang dung) OR (ung dung)) huong dan thanh mau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho ((chieu xanh) OR (chieu sang)) - cong trong ((quang dung) OR (ung dung)) huong dan thanh mau.
• The words AND, OR and NOT may confuse the search; try adding quotes: "ho ((chieu xanh) or (chieu sang)) - cong trong ((quang dung) OR (ung dung)) huong dan thanh mau".
• Adding a wildcard symbol may retrieve word variants: ho ((chieu xanh) or (chieu sang)) - cong trong ((quang dung) OR (ung dung)) huong dan thanh mau*.