Perhaps you should try some spelling variations:
governance public » governance policy, gouvernance publique, government public
sobre gobernanza » de gobernanza
some governance » crime governance, e governance, die governance
la oxides » a oxides, gap oxides, via oxides
estudio » studio
estudios » studios

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

• If you are trying to use Boolean operators, they must be ALL CAPS: (( estudio de la ocde sobre gobernanza publica ) OR ( estudios de la oxides some governance public )).
• Adding a wildcard symbol may retrieve word variants: (( estudio de la ocde sobre gobernanza publica ) or ( estudios de la oxides some governance public ))*.