Perhaps you should try some spelling variations:
within progenies » sibling progenies (Expand search), in progenies (Expand search), their progenies (Expand search)
decrease within » decrease with (Expand search), decreases with (Expand search), disease within (Expand search)
decrease during » increase during (Expand search), increases during (Expand search), increased during (Expand search)
during disease » urine disease (Expand search), ring disease (Expand search), using disease (Expand search)
decrease rate » decreased rate (Expand search), decreases rate (Expand search), decrease at (Expand search)
rate decrease » rats decreases (Expand search), rate increase (Expand search), to decrease (Expand search)
decrease or » decrease of (Expand search), decrease on (Expand search), decrease pro (Expand search)
or decrease » of decrease (Expand search), not decrease (Expand search), to decrease (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 OR decrease within progenies ) OR ( decrease rate decrease during disease ))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "(( decrease or decrease within progenies ) OR ( decrease rate decrease during disease ))~".
• Adding a wildcard symbol may retrieve word variants: (( decrease or decrease within progenies ) OR ( decrease rate decrease during disease ))*.