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