Perhaps you should try some spelling variations:
"complementarity contained problem" » "complementaridade contained problem" (Expand Search), "complementarity obtained problem" (Expand Search), "complementarity contained problema" (Expand Search), "complementarity contained problemas" (Expand Search)
"complementar constraints problemaasa" » "complementar constraints problemaaasa" (Expand Search), "complementar constraints problemasaasa" (Expand Search), "complementar constraints problemas" (Expand Search), "complementar constraints problematica" (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 contained problem\") OR (\"complementar constraints problemaasa\"))~".
• Removing quotes may allow a broader search: (( complementarity contained problem ) OR ( complementar constraints problemaasa ))~.
• Adding a wildcard symbol may retrieve word variants: (("complementarity contained problem") OR ("complementar constraints problemaasa"))*.