Perhaps you should try some spelling variations:
chieu xanh » chieu sach, chieu sang, chieu tinh
chiet tach » chieu sach
thong cong » trong cong, tong cong, thong thong
hanh tang » hanh trang, anh tang, hanh mang
van thong » van thuong, van phong, va thong
tang van » dang van, hoang van, trong van
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) OR (chiet tach)) - hanh tang van thong cong dan ((toan cao) OR (toan ban))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "ho ((chieu xanh) or (chiet tach)) - hanh tang van thong cong dan ((toan cao) OR (toan ban))~".
• Adding a wildcard symbol may retrieve word variants: ho ((chieu xanh) or (chiet tach)) - hanh tang van thong cong dan ((toan cao) OR (toan ban))*.