Perhaps you should try some spelling variations:
chieu xanh » chieu sach, chieu sang, chieu tinh
thong cong » trong cong, tong cong, thong thong
tranh van » tran van, trinh van, thanh van
van thong » van thuong, van phong, va thong
ho chieu » theo chieu, hoc thieu, doi chieu
cong san » cong tac
phan dau » hang dau

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