Perhaps you should try some spelling variations:
chuong cong » chong cong, chuong dong, chuong duong
cuong cong » cong cong, luong cong, duong cong
chuc danh » chuc nganh, thuc hanh, chuc nang
quang van » quang ban, quan van, quang uan
chu bang » thu bang, chuc nang, chu quang
vang tan » van tan, tang tan, vang tao
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 (chu bang)) - nhanh quang van ((chuong cong) OR (cuong cong)) vang tan tap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo ((chuc danh) OR (chu bang)) - nhanh quang van ((chuong cong) OR (cuong cong)) vang tan tap.
• The words AND, OR and NOT may confuse the search; try adding quotes: "theo ((chuc danh) or (chu bang)) - nhanh quang van ((chuong cong) OR (cuong cong)) vang tan tap".
• Adding a wildcard symbol may retrieve word variants: theo ((chuc danh) or (chu bang)) - nhanh quang van ((chuong cong) OR (cuong cong)) vang tan tap*.