Perhaps you should try some spelling variations:
nhanh lang » nhanh quang, nhanh thang, nhan dang
van nhuong » van chuong, van phuong, van huong
chuc danh » chuc nganh, thuc hanh, thuc dan
cong vang » cong lang, cong quang, cong ngang
lang van » dang van, tang van, hoang van
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 (chuc nang)) - nhanh lang van nhuong ((cong van) OR (cong vang)) tan tap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo ((chuc danh) OR (chuc nang)) - nhanh lang van nhuong ((cong van) OR (cong vang)) tan tap.
• The words AND, OR and NOT may confuse the search; try adding quotes: "theo ((chuc danh) or (chuc nang)) - nhanh lang van nhuong ((cong van) OR (cong vang)) tan tap".
• Adding a wildcard symbol may retrieve word variants: theo ((chuc danh) or (chuc nang)) - nhanh lang van nhuong ((cong van) OR (cong vang)) tan tap*.