Perhaps you should try some spelling variations:
chieu xanh » chieu sach, chieu sang, chieu tinh
canh trinh » canh tranh, hanh trinh, canh tinh
trinh van » trinh han, trinh quan, trinh toan
dang cong » dung cong
ho chieu » theo chieu, hoc thieu, doi chieu
van dang » van dong, van dung, van nang
cong san » cong tac
phan cac » nhan cach, phan lap, phan van
phan dau » hang dau

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 van dang cong san ((phan cac) OR (((phan dau) OR (phan tu))))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "ho chieu xanh - canh trinh van dang cong san ((phan cac) or (((phan dau) OR (phan tu))))~".
• Adding a wildcard symbol may retrieve word variants: ho chieu xanh - canh trinh van dang cong san ((phan cac) or (((phan dau) OR (phan tu))))*.