Perhaps you should try some spelling variations:
chieu xanh » chieu sach, chieu sang, chieu tinh
canh tran » canh tranh, hanh trang, banh trang
hang cong » hang nong, bang cong, thanh cong
dung cong » dung trong
doan phan » doanh phan, toan phan, dan phan
ho chieu » theo chieu, hoc thieu, doi chieu
tran van » luan van
phan cac » nhan cach, phan dau, 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 tran van ((((hang cong) OR (dang cong))) OR (dung cong)) doan phan cac~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "ho chieu xanh - canh tran van ((((hang cong) OR (dang cong))) or (dung cong)) doan phan cac~".
• Adding a wildcard symbol may retrieve word variants: ho chieu xanh - canh tran van ((((hang cong) OR (dang cong))) or (dung cong)) doan phan cac*.