Perhaps you should try some spelling variations:
thanh trung » thanh tung
nhung cong » dung cong, thong cong, hang cong
chua xang » chua nang, chu bang, chua dong
trung ha » trung hoc, trung tam, trung cap
ha nhung » hoa nhung, hay nhung, pha nhung
dan than » dan chan, ban than, dan toan
van than » van thanh, van thang, van tuan
chuc » thuc, chu, phuc

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 (chuc nang)) - thanh trung ha nhung cong ((dan than) OR (van than)) cao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo ((chua xang) OR (chuc nang)) - thanh trung ha nhung cong ((dan than) OR (van than)) cao.
• The words AND, OR and NOT may confuse the search; try adding quotes: "theo ((chua xang) or (chuc nang)) - thanh trung ha nhung cong ((dan than) OR (van than)) cao".
• Adding a wildcard symbol may retrieve word variants: theo ((chua xang) or (chuc nang)) - thanh trung ha nhung cong ((dan than) OR (van than)) cao*.