Perhaps you should try some spelling variations:
chieu xanh » chieu sach, chieu sang, chieu tinh
trinh toan » tinh toan, thanh toan, trinh han
hang cong » dang cong, hang nong, thanh cong
bang cong » dang cong, bang song, dung cong
ho chieu » theo chieu, hoc thieu, doi chieu
tan phan » toan phan, than phan, 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 toan) or (tinh quang)) ((hang cong) OR (bang cong)) tan phan tu~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho chieu xanh - canh ((trinh toan) OR (tinh quang)) ((hang cong) OR (bang cong)) tan phan tu.
• The words AND, OR and NOT may confuse the search; try adding quotes: "ho chieu xanh - canh ((trinh toan) or (tinh quang)) ((hang cong) OR (bang cong)) tan phan tu".
• Adding a wildcard symbol may retrieve word variants: ho chieu xanh - canh ((trinh toan) or (tinh quang)) ((hang cong) OR (bang cong)) tan phan tu*.