Not able to find dashboard that was saved

some of the dashboard are visible in the ui where some are present in grafana.db ,how can i find or load that dashboard and even grafana is not showing options to create new dashboard ,not able to find the settings button too. not able to view query in dashboard which are available , my version is 5.4.2

Hello, you can search for dashboards:

Note: This may be a newer feature, and it may require an upgrade.