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