Perhaps you should try some spelling variations:
thanh trung » thanh tung
chua xang » chua nang, chuc nang, chua dong
hang cong » dang cong, bang cong, thanh cong
hang nong » thang long, han tong
van thanh » ban thanh, van tuan
thanh cac » hanh cac, thanh bac, thanh ca
chu bang » thu bang, chuc nang, chu quang
trung ha » trung hoc, trung tam, trung cap

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

• Performing a fuzzy search may retrieve terms with similar spellings: theo ((chua xang) or (chu bang)) - thanh trung ha ((hang cong) OR (hang nong)) van thanh cac~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo ((chua xang) OR (chu bang)) - thanh trung ha ((hang cong) OR (hang nong)) van thanh cac.
• The words AND, OR and NOT may confuse the search; try adding quotes: "theo ((chua xang) or (chu bang)) - thanh trung ha ((hang cong) OR (hang nong)) van thanh cac".
• Adding a wildcard symbol may retrieve word variants: theo ((chua xang) or (chu bang)) - thanh trung ha ((hang cong) OR (hang nong)) van thanh cac*.