No specific resources to learn software development

I wanted to learn how to make Web Apps for businesses, specifically logistics/shipping use cases.

I wanted to understand how come specific suggestions/resources don't show up, when I try to google courses/guidance on how to learn how to do this.

Is it because the topic is too vast to answer with a specific result.

I wanted to specifically learn which language to learn, which specific courses to take – get mostly vague suggestions from Google. Hoping the herein community can assist.