Perhaps you should try some spelling variations:
thanh trung » thanh tung
hiem ngan » kim ngan, viem gan
cua thong » cua thuong, cua khong, suat thong
hoc hiem » hoc hien, hoc thieu, hoc thiet
cua tong » cua cong, cua dong, cua nong
cong tac » cong ty
tac than » tac thanh, tam than, tac nhan
than cap » khan cap, thanh lap, thanh cac

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

• Performing a fuzzy search may retrieve terms with similar spellings: hoc hiem ngan - thanh trung ((cua thong) OR (cua tong)) cong tac than cap~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc hiem ngan - thanh trung ((cua thong) OR (cua tong)) cong tac than cap".
• Adding a wildcard symbol may retrieve word variants: hoc hiem ngan - thanh trung ((cua thong) OR (cua tong)) cong tac than cap*.