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

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 )).
• Adding a wildcard symbol may retrieve word variants: (( life sediment structure analysis ) or ( life segment case analysis ))*.