Perhaps you should try some spelling variations:
dung cong » dung trong
chu xang » chua xang, chu bang, chuc nang
cong van » cong vang, cong san, song van
van tuan » van quan, van ban, anh tuan
cho chu » cho thue
tang su » tang suc, trang su, nang su
tuan tu » tuan thu, tran tu, toan tu

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

• Performing a fuzzy search may retrieve terms with similar spellings: cho chu xang - hanh ((tang su) or (dang su)) dung cong van tuan tu~.
• If you are trying to use Boolean operators, they must be ALL CAPS: cho chu xang - hanh ((tang su) OR (dang su)) dung cong van tuan tu.
• Adding a wildcard symbol may retrieve word variants: cho chu xang - hanh ((tang su) or (dang su)) dung cong van tuan tu*.