Reduce zero-result searches by solving the cause, not by always showing something.

Assortment gap

The question may be legitimate while the product is missing.

Data gap

An existing product can be untraceable due to missing terms or attributes.

Language and spelling

Check typo tolerance and customer language.

Filters and rights

An empty set may be the result of a valid restriction.

Index

Check freshness and synchronization before customizing content.