Perhaps you should try some spelling variations:
quang trung » truong trung
chieu xanh » chieu sach, chieu sang, chieu tinh
canh thanh » canh tranh, danh thanh, anh thanh
quang dung » ung dung, cuong dung
ho chieu » theo chieu, hoc thieu, doi chieu
cong tan » cong tac, cong thanh, cong ty
cong san » cong tac

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