Perhaps you should try some spelling variations:
nhanh lang » nhanh quang, nhanh thang, nhan dang
thong cong » trong cong, tong cong, thong thong
chuc danh » chuc nganh, thuc hanh, chuc nang
chua nang » chuc nang, chua xang, kha nang
van thong » van thuong, van phong, va thong
lang van » dang van, tang van, hoang van
van tan » van tuan, van ban, van thanh
van tai » von tai, van tuan

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