Perhaps you should try some spelling variations:
lake sediment » lake sediments
sediment item » sediment sites, sediment diatom, sediment bed
item analysis » fem analysis, sem analysis, dem analysis
sediment tem » sediment bed, sediment tss, sediment types
tem analysis » fem analysis, sem analysis, dem 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: (( lake sediment tem analysis ) OR ( lake sediment item analysis )).
• Adding a wildcard symbol may retrieve word variants: (( lake sediment tem analysis ) or ( lake sediment item analysis ))*.