Perhaps you should try some spelling variations:
"complementaridade constrained problem" » "complementaridade contained problem" (Expand Search), "complementaridade constrained problema" (Expand Search), "complementaridade constrained problemas" (Expand Search)
"complementarity constraints problemasasa" » "complementarity constraints problemaasasa" (Expand Search), "complementarity constraints problemasasasa" (Expand Search), "complementar constraints problemasasa" (Expand Search), "complementarity constraints problemas" (Expand Search), "complementarity constraints problematica" (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: (("complementaridade constrained problem") OR ("complementarity constraints problemasasa"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"complementaridade constrained problem\") OR (\"complementarity constraints problemasasa\"))".
• Removing quotes may allow a broader search: (( complementaridade constrained problem ) OR ( complementarity constraints problemasasa )).
• Adding a wildcard symbol may retrieve word variants: (("complementaridade constrained problem") OR ("complementarity constraints problemasasa"))*.