This is the 13630th most frequent German word.
durchsuchen
To search thoroughly.
Here, "durchsuchen" is used to indicate the thorough act of searching through a specified area (my room) for something specific (my keys).
Ich musste mein Zimmer nach meinem verlorenen Schlüssel durchsuchen.
I had to search through my room for my lost keys.
In this sentence, "durchsuchen" is utilized to represent an official or systematic search conducted by the police within a given space (the building) for evidence or clues.
Die Polizei durchsucht das Gebäude nach Hinweisen.
The police are searching the building for clues.
Here, "durchsuchen" describes the act of examining textual content (the article) meticulously to locate a particular piece of information.