Perhaps you should try some spelling variations:
thanh trung » thanh tung
thieu sach » thien hach, hieu cach, theo sach
chieu sach » chinh sach, chiet tach, chieu sang
trung cua » truong cua, trung tuan, trung cap
tong cong » trong cong, cong cong, dung cong
cua tong » cua cong, cua dong, cua nong
dan than » dan chan, van than, dan toan
ban than » ban thanh, van thanh, ban hang

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

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