Perhaps you should try some spelling variations:
thanh trung » thanh tung
hiem ngan » kim ngan, viem gan
trung cap » truong cao, trung tam
cap thong » cap tong, chap thuong, phap thong
doc hiem » doc hieu, hoc hien, doc viet
cong dan » huong dan, cong dong, cong tac
cong san » cong tac
cong tan » cong tac, cong thanh, cong ty
than cau » toan cau, phan cau, than cap

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

• Performing a fuzzy search may retrieve terms with similar spellings: doc hiem ngan - thanh trung cap thong ((((cong dan) or (cong san))) or (cong tan)) than cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doc hiem ngan - thanh trung cap thong ((((cong dan) OR (cong san))) OR (cong tan)) than cau.
• Adding a wildcard symbol may retrieve word variants: doc hiem ngan - thanh trung cap thong ((((cong dan) or (cong san))) or (cong tan)) than cau*.