Perhaps you should try some spelling variations:
"problemas contexto linguistico methodology." » "problemas contexto linguistics methodology.", "problemas contexto linguistica metodologia.", "problemas contextos linguisticos methodology.", "problemas contacto linguistico methodology.", "problemas conflicto linguistico methodology.", "problemas contextos linguistico methodology.", "problemas concretos linguistico methodology."
"proces control service methodology." » "proces control science methodology.", "proces control sciences methodology.", "proces control devices methodology.", "process control service methodology.", "proces contre service methodology.", "proces contreles service methodology."

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

• Performing a fuzzy search may retrieve terms with similar spellings: (("problemas contexto linguistico methodology.") or ("proces control service methodology."))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (("problemas contexto linguistico methodology.") OR ("proces control service methodology.")).
• Removing quotes may allow a broader search: (( problemas contexto linguistico methodology. ) or ( proces control service methodology. )).
• Adding a wildcard symbol may retrieve word variants: (("problemas contexto linguistico methodology.") or ("proces control service methodology."))*.