Perhaps you should try some spelling variations:
tieu tach » lieu thach, tieu danh
hieu cach » hieu cac, chieu sach, hieu ca
dung cong » dung trong
cong ban » cong bang, cong san, cong tan
ban dung » van dung, dan dung, tan dung
cong van » cong vang, cong san, song van
van phan » van phong, van thanh, luan 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: theo ((tieu tach) or (hieu cach)) - thanh cong ban dung cong van phan lap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo ((tieu tach) OR (hieu cach)) - thanh cong ban dung cong van phan lap.
• Adding a wildcard symbol may retrieve word variants: theo ((tieu tach) or (hieu cach)) - thanh cong ban dung cong van phan lap*.