Perhaps you should try some spelling variations:
chieu xanh » chieu sach, chieu tinh, hieu manh
chieu sang » chieu sach, hieu lang, nhieu tang
quang dung » quang trung, cuong dung
cong thanh » dong thanh, cong trinh, cong tan
hanh tang » hanh trang, anh tang, hanh mang
thanh van » thanh san, thanh toan, thanh phan

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)) - hanh tang ((quang dung) or (ung dung)) cong thanh van ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho ((chieu xanh) OR (chieu sang)) - hanh tang ((quang dung) OR (ung dung)) cong thanh van ban.
• The words AND, OR and NOT may confuse the search; try adding quotes: "ho ((chieu xanh) OR (chieu sang)) - hanh tang ((quang dung) or (ung dung)) cong thanh van ban".
• Adding a wildcard symbol may retrieve word variants: ho ((chieu xanh) OR (chieu sang)) - hanh tang ((quang dung) or (ung dung)) cong thanh van ban*.