Perhaps you should try some spelling variations:
"trieu ki nang van dinh doanh" » "trieu ki nang van minh doanh", "trieu ki nang van chinh doanh", "trieu ki nang van doanh doanh", "trieu vi nang van dinh doanh", "trieu kien nang van dinh doanh", "trieu lit nang van dinh doanh", "trieu ki dang van dinh doanh", "trieu ki lang van dinh doanh", "trieu ki nong van dinh doanh", "trieu ki nang van dich doanh", "trieu ki nang va dinh doanh", "trieu ky nang van dinh doanh"
"trieu thi tang van kinh doanh" » "trieu thi trang van kinh doanh", "trieu thai tang van kinh doanh", "trieu thi nang van kinh doanh", "trieu thi dang van kinh doanh", "trieu thi hoang van kinh doanh", "trieu thi trong van kinh doanh", "trieu thi tang va kinh doanh", "trieu thi tang van minh doanh", "trieu thi tang van binh doanh"

Try widening your search to All Fields.

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: (("trieu thi tang van kinh doanh") or ("trieu ki nang van dinh doanh"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (("trieu thi tang van kinh doanh") OR ("trieu ki nang van dinh doanh")).
• Removing quotes may allow a broader search: (( trieu thi tang van kinh doanh ) or ( trieu ki nang van dinh doanh )).
• Adding a wildcard symbol may retrieve word variants: (("trieu thi tang van kinh doanh") or ("trieu ki nang van dinh doanh"))*.