Perhaps you should try some spelling variations:
governance public » governance policy, gouvernance publique, government public
space governance » change governance, cyberspace governance, e governance
oxide some » oxides some, oxidase some, aside some
oxide sols » oxide solid, oxide scales
ocde space » code space, mode space, side space

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: (( ((estudios de) OR (estudio de)) ba ((oxide some) OR (oxide sols)) governance public ) OR ( ((estudios de) OR (estudio de)) la ocde space governance public )).
• The words AND, OR and NOT may confuse the search; try adding quotes: "(( ((estudios de) or (estudio de)) ba ((oxide some) OR (oxide sols)) governance public ) or ( ((estudios de) or (estudio de)) la ocde space governance public ))".
• Adding a wildcard symbol may retrieve word variants: (( ((estudios de) or (estudio de)) ba ((oxide some) OR (oxide sols)) governance public ) or ( ((estudios de) or (estudio de)) la ocde space governance public ))*.