Perhaps you should try some spelling variations:
"decisiones making matematicas models." » "decisiones making mathematical models.", "decisiones maquina matematica models.", "decisiones mexico matematicas models.", "decisiones making matematicas del.", "decisiones making matematicas adela.", "decision making matematicas models.", "decisiones make matematicas models."
"decisiones sin matematicas models." » "decisiones sin mathematical models.", "decisiones sin matematicas del.", "decisiones sin matematicas adela.", "decisiones en matematicas models.", "decisiones con matematicas models.", "decisiones sus matematicas models.", "decisiones lisa matematicas models.", "decisions spain matematicas models."

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: (("decisiones making matematicas models.") OR ("decisiones sin matematicas models."))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"decisiones making matematicas models.\") OR (\"decisiones sin matematicas models.\"))".
• Removing quotes may allow a broader search: (( decisiones making matematicas models. ) OR ( decisiones sin matematicas models. )).
• Adding a wildcard symbol may retrieve word variants: (("decisiones making matematicas models.") OR ("decisiones sin matematicas models."))*.