Perhaps you should try some spelling variations:
nhuong cong » nhung cong, luong cong, duong cong
chuc danh » chuc nganh, thuc hanh, chuc nang
chua xang » chua nang, chuc nang, chu bang
hoang van » hang va
lang van » dang van, tang van, giang van
cong van » cong vang, cong san, song van
van tan » van tuan, van ban, van tai
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 xang)) - nhanh ((lang van) OR (hoang van)) nhuong cong van tan tap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo ((chuc danh) OR (chua xang)) - nhanh ((lang van) OR (hoang van)) nhuong cong van tan tap.
• The words AND, OR and NOT may confuse the search; try adding quotes: "theo ((chuc danh) or (chua xang)) - nhanh ((lang van) OR (hoang van)) nhuong cong van tan tap".
• Adding a wildcard symbol may retrieve word variants: theo ((chuc danh) or (chua xang)) - nhanh ((lang van) OR (hoang van)) nhuong cong van tan tap*.