Perhaps you should try some spelling variations:
thanh trung » thanh tung
hiem ngan » kim ngan, viem gan
hieu manh » chieu xanh, hieu nganh, dieu hanh
trung cap » truong cao, trung tam
cap thong » cap tong, chap thuong, phap thong
cong tan » cong tac, cong san, cong thanh
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) or (hieu manh)) - thanh trung cap thong ((cong dong) or (cong tan)) than cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doc ((hiem ngan) OR (hieu manh)) - thanh trung cap thong ((cong dong) OR (cong tan)) than cau.
• Adding a wildcard symbol may retrieve word variants: doc ((hiem ngan) or (hieu manh)) - thanh trung cap thong ((cong dong) or (cong tan)) than cau*.