Perhaps you should try some spelling variations:
valores social » valores sociales, valor social, valores hacia
estudio basico » estudio basado, studio basica, estudio biblico
values social » games social, valor social, valores sociales
estudio leido » estudio lexico, estudio pleito, estudio ley
estudio bio » estudio bajo, estudio bahia, estudio como

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((valores social) or (values social)) ((estudio leido) or (((estudio bio) OR (estudio basico))))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((valores social) OR (values social)) ((estudio leido) OR (((estudio bio) OR (estudio basico)))).
• The words AND, OR and NOT may confuse the search; try adding quotes: "((valores social) or (values social)) ((estudio leido) or (((estudio bio) OR (estudio basico))))".
• Adding a wildcard symbol may retrieve word variants: ((valores social) or (values social)) ((estudio leido) or (((estudio bio) OR (estudio basico))))*.