Perhaps you should try some spelling variations:
"justificacion estrategica" » "planificacion estrategica", "ubicacion estrategica", "justificacion epistemica"
"planificacion estrategia" » "planificacion estrategica", "planeacion estrategica", "plantacion estrategica"
"gamificacion estrategia" » "planificacion estrategica", "comunicacion estrategia", "gamification strategy"
"utilizacion estrategica" » "localizacion estrategica", "aplicacion estrategica", "ubicacion estrategica"

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

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