How do I see older logs in Grafana Loki

I am new with Grafna Loki; I am running this on a k8s cluster for 14 days; However when I query I get only today’s data
Query - {namespace=~"kube-system|loki"}
Note I have increased max_entries_limit_per_query: 50000 and Maximum lines in Grafana data source to 50000

My loki values are here Loki Helm configuration ( AWS S3 with IRSA) · GitHub

At the top right in Grafana there is a time range selector. Have you selected an appropriate value there?

Thank you; was not familiar with this GUI!