Perhaps you should try some spelling variations:
quality properties » stability properties (Expand search), qualitative properties (Expand search)
decrease quality » increase quality (Expand search), disease quality (Expand search), database quality (Expand search)
decrease further » increase further (Expand search), disease further (Expand search), decrease the (Expand search)
further increase » together increase (Expand search), further case (Expand search), butter increased (Expand search)
increase toc » increase to (Expand search), increase the (Expand search), increase tax (Expand search)
toc decrease » the decrease (Expand search), not decrease (Expand search), of decrease (Expand search)
decrease to » decreased to (Expand search), decrease toc (Expand search), decrease the (Expand search)

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

• The words AND, OR and NOT may confuse the search; try adding quotes: "(( decrease to decrease quality properties ) OR ( decrease further increase toc decrease ))~".
• Adding a wildcard symbol may retrieve word variants: (( decrease to decrease quality properties ) OR ( decrease further increase toc decrease ))*.