Perhaps you should try some spelling variations:
thanh trung » thanh tung
chieu sach » chinh sach, chiet tach, chieu sang
thong cong » trong cong, tong cong, thong thong
trung cap » truong cao, trung tam
cap thong » cap tong, chap thuong, phap thong
chi sach » chinh sach, co sach, moi sach
cong san » cong tac
toan ban » van ban
than cap » khan cap, thanh lap, thanh cac

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

• Performing a fuzzy search may retrieve terms with similar spellings: doi ((chi sach) OR (chieu sach)) - thanh trung cap thong cong san ((toan ban) or (than cap))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doi ((chi sach) OR (chieu sach)) - thanh trung cap thong cong san ((toan ban) OR (than cap)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "doi ((chi sach) OR (chieu sach)) - thanh trung cap thong cong san ((toan ban) or (than cap))".
• Adding a wildcard symbol may retrieve word variants: doi ((chi sach) OR (chieu sach)) - thanh trung cap thong cong san ((toan ban) or (than cap))*.