Perhaps you should try some spelling variations:
during decrease » during increased (Expand search), during depressed (Expand search), during disease (Expand search)
decrease costs » decreasing costs (Expand search), decreases post (Expand search), disease costs (Expand search)
costs decrease » loss decrease (Expand search), not decrease (Expand search), cells decrease (Expand search)
eeg processing » egg processing (Expand search), log processing (Expand search), vog processing (Expand search)
decrease eeg » decrease treg (Expand search), decrease need (Expand search), decrease cell (Expand search)
decrease and » decreases and (Expand search), decrease in (Expand search), decrease of (Expand search)
and increase » and increases (Expand search), and increased (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 costs decrease eeg processing ) OR ( decrease AND increase during decrease ))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "(( decrease costs decrease eeg processing ) OR ( decrease and increase during decrease ))~".
• Adding a wildcard symbol may retrieve word variants: (( decrease costs decrease eeg processing ) OR ( decrease and increase during decrease ))*.