Perhaps you should try some spelling variations:
chieu sach » chinh sach, chiet tach, chieu sang
chieu xanh » chieu sang, chieu tinh, hieu manh
thong tong » thong thong, thong trong, thong cong
chinh ca » chinh ta, chinh va, chinh tai
ca thong » ca thuong, va thong, ca trong
tong tap » tuong tac, trong tan, cong tac
tap toan » tap doan, tap quan, bai toan
toan ban » van ban

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: doi ((chieu sach) or (chieu xanh)) - hanh chinh ca thong tong tap toan ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doi ((chieu sach) OR (chieu xanh)) - hanh chinh ca thong tong tap toan ban.
• Adding a wildcard symbol may retrieve word variants: doi ((chieu sach) or (chieu xanh)) - hanh chinh ca thong tong tap toan ban*.