Perhaps you should try some spelling variations:
imagem processing » image processing (Expand search), images processing (Expand search), imaging processing (Expand search)
decreased memory » decreased tumor (Expand search), decreased rorc (Expand search), decreased semen (Expand search)
decrease imagem » decrease age (Expand search)
memory decrease » memory decreases (Expand search), memory increased (Expand search), memory disease (Expand search)
the decreased » the decrease (Expand search), the deceased (Expand search), the increased (Expand search)
decrease not » decrease of (Expand search), decrease akt (Expand search), decrease at (Expand search)
not decrease » to decrease (Expand search), not increase (Expand search), and decrease (Expand search)
decrease the » decreases the (Expand search), decrease in (Expand search), decrease of (Expand search)

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: (( decrease NOT decrease imagem processing ) OR ( decrease the decreased memory decrease ))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "(( decrease not decrease imagem processing ) OR ( decrease the decreased memory decrease ))~".
• Adding a wildcard symbol may retrieve word variants: (( decrease not decrease imagem processing ) OR ( decrease the decreased memory decrease ))*.