In LexisNexis, click Search By Content Type. From here you will see several options:
Use Federal and State Cases to find court cases within federal and state jurisdictions.
Select Advanced Options to limit by date and jurisdiction, and to build a more complex search using search segments and connectors:
In your list of results, look to see what order your results are displayed in (e.g., "Newest to Oldest" or "Relevance")