Perhaps you should try some spelling variations:
thong cong » trong cong, tong cong, thong thong
chieu xanh » chieu sach, chieu sang, chieu tinh
cua thong » cua thuong, cua khong, cua tong
ho chieu » theo chieu, hoc thieu, doi chieu
cach van » bach van, canh van, cach mang
cong dan » cong san, cong tan, huong dan
dan phan » doan phan, dan chan, van phan
phan cau » phan dau, phan cac, phan tu
cac van » cac dan
can van » can ban, tan van, cao van

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