Perhaps you should try some spelling variations:
nhanh lang » nhanh quang, nhanh thang, nhan dang
chuc danh » chuc nganh, thuc hanh, chuc nang
chua nang » chuc nang, chua xang, kha nang
lang van » dang van, tang van, hoang van
van hang » van khang, van hoang, van thang
cong van » cong vang, song van, cong tan
cong san » cong tac
tuan tap » toan tap, tuan tai, tuyen tap

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

• Performing a fuzzy search may retrieve terms with similar spellings: theo ((chuc danh) or (chua nang)) - nhanh lang van hang ((cong van) OR (cong san)) tuan tap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo ((chuc danh) OR (chua nang)) - nhanh lang van hang ((cong van) OR (cong san)) tuan tap.
• The words AND, OR and NOT may confuse the search; try adding quotes: "theo ((chuc danh) or (chua nang)) - nhanh lang van hang ((cong van) OR (cong san)) tuan tap".
• Adding a wildcard symbol may retrieve word variants: theo ((chuc danh) or (chua nang)) - nhanh lang van hang ((cong van) OR (cong san)) tuan tap*.