Perhaps you should try some spelling variations:
"functions analysis" » "function analysis"
"solutions analysis" » "resolution analysis"
"functional analysis" » "function analysis"

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: (((((("functions analysis") OR ("functional analysis"))) OR ("equations analysis"))) OR ((("solutions analysis") OR ("evolutionary analysis")))).
• The words AND, OR and NOT may confuse the search; try adding quotes: "((((((\"functions analysis\") or (\"functional analysis\"))) or (\"equations analysis\"))) or (((\"solutions analysis\") OR (\"evolutionary analysis\"))))".
• Removing quotes may allow a broader search: (((((( functions analysis ) or ( functional analysis ))) or ( equations analysis ))) or ((( solutions analysis ) OR ( evolutionary analysis )))).
• Adding a wildcard symbol may retrieve word variants: (((((("functions analysis") or ("functional analysis"))) or ("equations analysis"))) or ((("solutions analysis") OR ("evolutionary analysis"))))*.