Perhaps you should try some spelling variations:
trung thanh » truong thanh
trinh thanh » tinh thanh, trinh han, trinh toan
chieu tach » chiet tach, chieu sach, chiu trach
nhung cong » dung cong, thong cong, hang cong
thanh cap » thanh lap, hanh cap, than cap
ho chieu » theo chieu, hoc thieu, doi chieu

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 ((trung thanh) or (trung tam)) nhung cong trinh thanh cap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho chieu tach - thanh ((trung thanh) OR (trung tam)) nhung cong trinh thanh cap.
• Adding a wildcard symbol may retrieve word variants: ho chieu tach - thanh ((trung thanh) or (trung tam)) nhung cong trinh thanh cap*.