Perhaps you should try some spelling variations:
"procesos tecnicas practicas medicas." » "procesos tecnicas proyectivas medicas.", "procesos tecnicas analiticas medicas.", "procesos tecnicas basicas medicas.", "progresos tecnicos practicas medicas.", "procesos teorias practicas medicas.", "propuestas tecnicas practicas medicas.", "procesos tecnicas practica medica.", "procesos tecnicas practicas clinicas.", "procesos tecnicas practicas pedagogicas."
"process control statistical methods." » "proceso control statistical methods.", "procesal control statistical methods.", "process control statistics methods.", "process control estadisticas methods."

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

• Performing a fuzzy search may retrieve terms with similar spellings: (("process control statistical methods.") or ("procesos tecnicas practicas medicas."))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (("process control statistical methods.") OR ("procesos tecnicas practicas medicas.")).
• Removing quotes may allow a broader search: (( process control statistical methods. ) or ( procesos tecnicas practicas medicas. )).
• Adding a wildcard symbol may retrieve word variants: (("process control statistical methods.") or ("procesos tecnicas practicas medicas."))*.