Perhaps you should try some spelling variations:
thanh trung » thanh tung
nhung cong » dung cong, thong cong, hang cong
tran thanh » van thanh, quan thanh
tiep danh » tieu danh, thien danh, tiep can
trung cap » truong cao, trung tam
cap nhung » cam nhung, vap nhung, dap nhung
ban thanh » ban hanh, ban hang
cong san » cong tac

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

• Performing a fuzzy search may retrieve terms with similar spellings: theo ((dieu hanh) or (tiep danh)) - thanh trung cap nhung cong san ((tran thanh) OR (ban thanh))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo ((dieu hanh) OR (tiep danh)) - thanh trung cap nhung cong san ((tran thanh) OR (ban thanh)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "theo ((dieu hanh) or (tiep danh)) - thanh trung cap nhung cong san ((tran thanh) OR (ban thanh))".
• Adding a wildcard symbol may retrieve word variants: theo ((dieu hanh) or (tiep danh)) - thanh trung cap nhung cong san ((tran thanh) OR (ban thanh))*.