Perhaps you should try some spelling variations:
chieu xanh » chieu sach, chieu sang, chieu tinh
nhung cong » dung cong, thong cong, hang cong
trinh ban » trinh san, trinh dan, trinh bao
trinh han » trinh quan
ho chieu » theo chieu, hoc thieu, doi chieu
cong van » cong vang, cong san, song van
phan cau » phan dau, phan cac, phan lap

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

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