Perhaps you should try some spelling variations:
nhung cong » dung cong, thong cong, hang cong
chuc danh » chuc nganh, thuc hanh, chuc nang
chua xang » chua nang, chuc nang, chu bang
quang van » quang ban, quan van, quang uan
van nhung » van nhuong, va nhung, van hung
san tan » san van, san tay, san ten
van tan » van tuan, van ban, van tai

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

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