Perhaps you should try some spelling variations:
thanh tung » thanh cong
nong cong » cong cong, tong cong, nang cong
chinh cau » chinh chau, chinh ca, chinh can
chinh bao » chinh ban, chinh giao, chinh tai
tung tam » trung tam, vung tam, dung tam
tam nong » lam nong, tam duong, tam huong
cong tac » cong ty
ho hieu » ho chieu, hoi hieu, nho hieu

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: ho hieu qua - thanh tung tam nong cong tac ((chinh cau) OR (chinh bao))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "ho hieu qua - thanh tung tam nong cong tac ((chinh cau) OR (chinh bao))".
• Adding a wildcard symbol may retrieve word variants: ho hieu qua - thanh tung tam nong cong tac ((chinh cau) OR (chinh bao))*.