Perhaps you should try some spelling variations:
trung tuan » trung thanh, trung tam, tran tuan
nhung cong » dung cong, thong cong, hang cong
trung cua » truong cua, trung cap, dung cua
ho chinh » hoc chinh, cho chinh, hoa chinh
dan than » dan chan, van than, dan toan
ban than » ban thanh, van thanh, ban hang

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

• Performing a fuzzy search may retrieve terms with similar spellings: ho chinh sach - hanh ((trung cua) OR (trung tuan)) nhung cong ((dan than) or (ban than)) cao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho chinh sach - hanh ((trung cua) OR (trung tuan)) nhung cong ((dan than) OR (ban than)) cao.
• The words AND, OR and NOT may confuse the search; try adding quotes: "ho chinh sach - hanh ((trung cua) OR (trung tuan)) nhung cong ((dan than) or (ban than)) cao".
• Adding a wildcard symbol may retrieve word variants: ho chinh sach - hanh ((trung cua) OR (trung tuan)) nhung cong ((dan than) or (ban than)) cao*.