Perhaps you should try some spelling variations:
thanh cuong » thanh chuong, thanh cong, thanh huong
tieu tach » lieu thach, hieu cach, tieu danh
cuong dan » cuong danh, huong dan, cong dan
dung cong » dung trong
hieu van » hieu va, thien van, lieu va
dan dung » van dung, tin dung, ap dung
cong tan » cong tac, cong san, cong thanh
tan phan » toan phan, than phan, van 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 van)) - thanh cuong dan dung cong tan phan lap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo ((tieu tach) OR (hieu van)) - thanh cuong dan dung cong tan phan lap.
• Adding a wildcard symbol may retrieve word variants: theo ((tieu tach) or (hieu van)) - thanh cuong dan dung cong tan phan lap*.