Perhaps you should try some spelling variations:
chuc danh » chuc nganh, thuc hanh, chuc nang
chua nang » chuc nang, chua xang, kha nang
nhan dang » nhan dan, phan dang, tran dang
van nhung » van nhuong, va nhung, van hung
cong vang » cong lang, cong quang, cong ngang
dang van » hoang van, hang va
cong van » cong san, song van, cong tan
tan tap » toan tap, han tap, tan tat

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