Perhaps you should try some spelling variations:
chieu tach » chiet tach, chieu sach, chiu trach
duong manh » duong van
dang cong » dung cong
cong than » cong thanh, cong thang, cong tan
than phan » thanh phan, toan phan, thanh pham
ho chieu » theo chieu, hoc thieu, mot chieu
dong san » cong san, dong bang, dong von
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: ho chieu tach - thanh ((duong manh) or (dong san)) dang cong than phan lap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho chieu tach - thanh ((duong manh) OR (dong san)) dang cong than phan lap.
• Adding a wildcard symbol may retrieve word variants: ho chieu tach - thanh ((duong manh) or (dong san)) dang cong than phan lap*.