Perhaps you should try some spelling variations:
thieu tach » thien hach, chiet tach, chieu sach
cuong danh » cuon danh, huong dan, cuong linh
dang cong » dung cong
cong san » cong tac
cong tra » cong thai, cong tuan, cong toan
tra phan » tri phan, toan phan, than phan
phan lap » phan dau

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 tach - thanh ((cuong danh) or (cong san)) dang cong tra phan lap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: toc thieu tach - thanh ((cuong danh) OR (cong san)) dang cong tra phan lap.
• Adding a wildcard symbol may retrieve word variants: toc thieu tach - thanh ((cuong danh) or (cong san)) dang cong tra phan lap*.