Perhaps you should try some spelling variations:
"investigacion dogmaticos de servicio" » "investigacion dogmatica de servicio", "investigacion formativa de servicio", "investigacion formacion de servicio", "investigacion dogmatico de servicio", "investigacion dogmatico del servicio", "investigacion logisticos de servicio", "investigacion dogmaticos de servicios"
"investigacion creativa del servicio" » "investigacion formativa del servicio", "investigacion operativa del servicio", "investigacion narrativa del servicio", "investigacion creativa de servicio", "investigacion creativo del servicio", "investigacion creativos del servicio"
"investigacion objetivo del servicio" » "investigacion objetivos del servicio", "investigacion objetivo de servicio", "investigacion objetivo 2 servicio"

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

• Performing a fuzzy search may retrieve terms with similar spellings: (("investigacion objetivo del servicio") or ((("investigacion dogmaticos de servicio") or ("investigacion creativa del servicio"))))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (("investigacion objetivo del servicio") OR ((("investigacion dogmaticos de servicio") OR ("investigacion creativa del servicio"))))*.
• Removing quotes may allow a broader search: (( investigacion objetivo del servicio ) or ((( investigacion dogmaticos de servicio ) or ( investigacion creativa del servicio ))))*.