Perhaps you should try some spelling variations:
thanh trung » thanh tung
trung tuan » trung thanh, trung tam, tran tuan
tuan thong » toan thong, tran thong, tuan phong
thong cong » trong cong, tong cong, thong thong
hien ngan » vien nganh, hien nhanh, hieu nganh
hiem ngan » kim ngan, viem gan
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 ((hien ngan) OR (hiem ngan)) - thanh trung tuan thong cong tac than cap~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc ((hien ngan) OR (hiem ngan)) - thanh trung tuan thong cong tac than cap".
• Adding a wildcard symbol may retrieve word variants: hoc ((hien ngan) OR (hiem ngan)) - thanh trung tuan thong cong tac than cap*.