Perhaps you should try some spelling variations:
thanh trung » thanh tung
trung cong » truong cong, trong cong, trung uong
theo dien » theo tieu, thu dien, thuy dien
dien sach » dien anh
trung cao » truong cao, trung cap, trung co
cao trung » cao truong, tao trung, bao trung
cong dan » cong san, cong tan, huong dan

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

• Performing a fuzzy search may retrieve terms with similar spellings: theo dien sach - thanh trung cao trung cong dan ((toan ban) OR (van ban))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "theo dien sach - thanh trung cao trung cong dan ((toan ban) OR (van ban))".
• Adding a wildcard symbol may retrieve word variants: theo dien sach - thanh trung cao trung cong dan ((toan ban) OR (van ban))*.