Perhaps you should try some spelling variations:
"trieu ki nang van kinh doanh" » "trieu vi nang van kinh doanh", "trieu kien nang van kinh doanh", "trieu thi nang van kinh doanh", "trieu ki dang van kinh doanh", "trieu ki tang van kinh doanh", "trieu ki nong van kinh doanh", "trieu ki nang va kinh doanh", "trieu ki nang van minh doanh", "trieu ki nang van dinh doanh", "trieu ky nang van kinh doanh"
"trieu ki lang van kinh doanh" » "trieu vi lang van kinh doanh", "trieu kien lang van kinh doanh", "trieu thi lang van kinh doanh", "trieu ki lang va kinh doanh", "trieu ki lang van minh doanh", "trieu ki lang van dinh doanh", "trieu ki dang van kinh doanh", "trieu ki tang van kinh doanh", "trieu ki hoang van kinh doanh", "trieu hoi lang van kinh doanh", "trieu tai lang van kinh doanh", "trieu chi lang van kinh 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 ki nang van kinh doanh") OR ("trieu ki lang van kinh doanh"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"trieu ki nang van kinh doanh\") OR (\"trieu ki lang van kinh doanh\"))".
• Removing quotes may allow a broader search: (( trieu ki nang van kinh doanh ) OR ( trieu ki lang van kinh doanh )).
• Adding a wildcard symbol may retrieve word variants: (("trieu ki nang van kinh doanh") OR ("trieu ki lang van kinh doanh"))*.