Perhaps you should try some spelling variations:
"justificacion estrategica" » "planificacion estrategica", "utilizacion estrategica", "ubicacion estrategica"
"gamificacion estrategia" » "planificacion estrategica", "comunicacion estrategica", "comunicacion estrategias"
"comunicacion estrategia" » "comunicacion estrategica", "comunicacion estrategias", "comunicacion escrita"
"gamification strategy" » "communication strategy"

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

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