add related content

qdrant-landing/content/documentation/concepts/filtering.md

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   - ../filtering
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 # Filtering
 
 With Qdrant, you can set conditions when searching or retrieving points.
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 Setting additional conditions is important when it is impossible to express all the features of the object in the embedding.
 Examples include a variety of business requirements: stock availability, user location, or desired price range.
 
+## Related Content
+|[A Complete Guide to Filtering in Vector Search](/articles/vector-search-filtering/)|Developer advice on proper usage and advanced practices.|
+|-|-|
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 ## Filtering clauses
 
 Qdrant allows you to combine conditions in clauses.