Perhaps you should try some spelling variations:
chieu xanh » chieu sach, chieu sang, chieu tinh
canh trinh » canh tranh, hanh trinh, anh trinh
nhung cong » thong cong, hang cong, nhung don
canh tinh » hanh tinh, manh tinh, canh tranh
dung cong » dung trong
ho chieu » theo chieu, hoc thieu, doi chieu
dan phan » doan phan, dan chan, van 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 - ((canh trinh) or (canh tinh)) va ((nhung cong) OR (dung cong)) dan phan tu~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho chieu xanh - ((canh trinh) OR (canh tinh)) va ((nhung cong) OR (dung cong)) dan phan tu.
• The words AND, OR and NOT may confuse the search; try adding quotes: "ho chieu xanh - ((canh trinh) or (canh tinh)) va ((nhung cong) OR (dung cong)) dan phan tu".
• Adding a wildcard symbol may retrieve word variants: ho chieu xanh - ((canh trinh) or (canh tinh)) va ((nhung cong) OR (dung cong)) dan phan tu*.