Perhaps you should try some spelling variations:
"life sediment structure analysis" » "life sedimentary structures analysis", "life document structure analysis", "life argument structure analysis", "life sediment structural analysis", "like sediments structure analysis", "slide sediment structure analysis", "lake sediment structure analysis"
"life segment case analysis" » "five segment case analysis", "pipe segment case analysis", "size segment case analysis", "life segment cases analysis", "life segment based analysis", "life segment laser analysis"
"line segment case analysis" » "line segment cases analysis", "line segment based analysis", "line segment laser analysis", "line segments case analysis"

Try widening your search to All Fields.

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: (("life sediment structure analysis") OR ((("life segment case analysis") OR ("line segment case analysis")))).
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"life sediment structure analysis\") or (((\"life segment case analysis\") OR (\"line segment case analysis\"))))".
• Removing quotes may allow a broader search: (( life sediment structure analysis ) or ((( life segment case analysis ) OR ( line segment case analysis )))).
• Adding a wildcard symbol may retrieve word variants: (("life sediment structure analysis") or ((("life segment case analysis") OR ("line segment case analysis"))))*.