Perhaps you should try some spelling variations:
"complementarity constrained problemassasaasa" » "complementaridade constrained problemassasaasa" (Expand Search), "complementarity contained problemassasaasa" (Expand Search), "complementarity constrained problemasssasaasa" (Expand Search)
"complementar constraints problema" » "complementar constraints problemas" (Expand Search)

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

• Performing a fuzzy search may retrieve terms with similar spellings: (("complementarity constrained problemassasaasa") OR ("complementar constraints problema"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"complementarity constrained problemassasaasa\") OR (\"complementar constraints problema\"))".
• Removing quotes may allow a broader search: (( complementarity constrained problemassasaasa ) OR ( complementar constraints problema )).
• Adding a wildcard symbol may retrieve word variants: (("complementarity constrained problemassasaasa") OR ("complementar constraints problema"))*.