Perhaps you should try some spelling variations:
nghiep nganh » nghiep thanh, nghiep ninh, nghiep anh
thanh trung » thanh tung
hiem ngan » kim ngan, viem gan
trung cap » truong cao, trung tam
cap thong » cap tong, chap thuong, phap thong
cong san » cong tac
cong tan » cong tac, cong thanh, cong ty

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

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