Perhaps you should try some spelling variations:
"management del marketing" » "management model marketing", "management al marketing", "management en marketing", "management _l marketing", "management datal marketing", "management casel marketing"
"management de marketing" » "management _ marketing", "management data marketing", "management case marketing"
"management y marketing" » "management _ marketing", "management study marketing"

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: (("management del marketing") or ((("management de marketing") OR ("management y marketing"))))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (("management del marketing") OR ((("management de marketing") OR ("management y marketing")))).
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"management del marketing\") or (((\"management de marketing\") OR (\"management y marketing\"))))".
• Removing quotes may allow a broader search: (( management del marketing ) or ((( management de marketing ) OR ( management y marketing )))).
• Adding a wildcard symbol may retrieve word variants: (("management del marketing") or ((("management de marketing") OR ("management y marketing"))))*.