Perhaps you should try some spelling variations:
thanh trung » thanh tung
hieu nganh » vien nganh, hieu manh, nghiep nganh
cong thanh » dong thanh, cong trinh, cong tan
hiem ngan » kim ngan, viem gan
trung cap » truong cao, trung tam
cap thong » cap tong, chap thuong, phap thong
cong san » cong tac
phan cau » phan dau, phan cac, phan tu

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

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