Perhaps you should try some spelling variations:
"complementarity constrained problem" » "complementaridade constrained problem" (Expand Search), "complementarity contained problem" (Expand Search), "complementarity constrained problema" (Expand Search), "complementarity constrained problemas" (Expand Search)
"complementar constraints problemaas" » "complementar constraints problemaaas" (Expand Search), "complementar constraints problemasaas" (Expand Search), "complementar constraints problemas" (Expand Search), "complementar constraints problema" (Expand Search), "complementar constraints problems" (Expand Search)

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

• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"complementarity constrained problem\") OR (\"complementar constraints problemaas\"))~".
• Removing quotes may allow a broader search: (( complementarity constrained problem ) OR ( complementar constraints problemaas ))~.
• Adding a wildcard symbol may retrieve word variants: (("complementarity constrained problem") OR ("complementar constraints problemaas"))*.