Perhaps you should try some spelling variations:
nhanh thang » nhanh thanh, nhanh quang, hanh trang
chieu xanh » chieu sach, chieu sang, chieu tinh
thong cong » trong cong, tong cong, thong thong
cua thong » cua thuong, cua khong, cua tong
ho chieu » theo chieu, hoc thieu, doi chieu
nhan tai » hang tai, van tai, toan tai
cong dan » cong san, cong tan, huong dan
toan cao » toan tap
toan ban » van ban

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 - ((nhanh thang) OR (nhan tai)) cua thong cong dan ((toan cao) OR (toan ban))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "ho chieu xanh - ((nhanh thang) or (nhan tai)) cua thong cong dan ((toan cao) OR (toan ban))~".
• Adding a wildcard symbol may retrieve word variants: ho chieu xanh - ((nhanh thang) or (nhan tai)) cua thong cong dan ((toan cao) OR (toan ban))*.