Perhaps you should try some spelling variations:
"c2 cases increased" » "c2 rate increased" (Expand Search), "c2 levels increased" (Expand Search), "152 cases increased" (Expand Search), "chd cases increased" (Expand Search), "123 cases increased" (Expand Search)
"c large decrease" » "c marked decrease" (Expand Search), "c large increases" (Expand Search), "c large degree" (Expand Search), "_ large decrease" (Expand Search), "a large decrease" (Expand Search), "i large decrease" (Expand Search)
"via large decrease" » "via marked decrease" (Expand Search), "via large increases" (Expand Search), "via large degree" (Expand Search), "a large decrease" (Expand Search)

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

• Performing a fuzzy search may retrieve terms with similar spellings: (("c2 cases increased") OR ((("c large decrease") OR ("via large decrease"))))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"c2 cases increased\") OR (((\"c large decrease\") OR (\"via large decrease\"))))".
• Removing quotes may allow a broader search: (( c2 cases increased ) OR ((( c large decrease ) OR ( via large decrease )))).
• Adding a wildcard symbol may retrieve word variants: (("c2 cases increased") OR ((("c large decrease") OR ("via large decrease"))))*.