Perhaps you should try some spelling variations:
variability affect » variability affects (Expand search), availability affect (Expand search), variability after (Expand search)
scale variability » rate variability (Expand search), the variability (Expand search), and variability (Expand search)
decrease taping » decrease walking (Expand search), decrease during (Expand search), decrease owing (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)
taping scale » taking scale (Expand search), teasing scale (Expand search), rating scale (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 AND decrease costs decrease ) OR ( decrease taping scale variability affect ))~".
• Adding a wildcard symbol may retrieve word variants: (( decrease AND decrease costs decrease ) OR ( decrease taping scale variability affect ))*.