Perhaps you should try some spelling variations:
"complementaridade contained problem" » "complementaridade obtained problem" (Expand Search), "complementaridade contained problema" (Expand Search), "complementaridade contained problemas" (Expand Search)
"complementar constraints problemass" » "complementar constraints problemaass" (Expand Search), "complementar constraints problemasass" (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.

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