Perhaps you should try some spelling variations:
"significant increased release" » "significant increase release" (Expand Search), "significant increases release" (Expand Search), "significantly increased release" (Expand Search), "significant increased reliance" (Expand Search), "significant increased relative" (Expand Search), "significant increased levels" (Expand Search)
"significant based decrease" » "significant cause decrease" (Expand Search), "significant barrier decrease" (Expand Search), "significant burden decrease" (Expand Search), "significant caused decreased" (Expand Search), "significant marked decrease" (Expand Search), "significant based defense" (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: "((\"significant increased release\") OR (\"significant based decrease\"))~".
• Removing quotes may allow a broader search: (( significant increased release ) OR ( significant based decrease ))~.
• Adding a wildcard symbol may retrieve word variants: (("significant increased release") OR ("significant based decrease"))*.