Do the Nazis conduct a wide search in order to find Bruno in Boyne's The Boy in the Striped Pajamas?

After Bruno takes Shmuel's hand in friendship and unwittingly walks directly into the gas chamber with his best friend, Bruno completely disappears.  Bruno disappears because he has been killed, along with many other Jewish people, in the gas chamber at the Auschwitz concentration camp.  Obviously, the complete disappearance of a German boy, especially one that is the son of a Nazi Commandant, would create grave concern.  Many Nazis are immediately ordered to search for Bruno....

After Bruno takes Shmuel's hand in friendship and unwittingly walks directly into the gas chamber with his best friend, Bruno completely disappears.  Bruno disappears because he has been killed, along with many other Jewish people, in the gas chamber at the Auschwitz concentration camp.  Obviously, the complete disappearance of a German boy, especially one that is the son of a Nazi Commandant, would create grave concern.  Many Nazis are immediately ordered to search for Bruno.  We can see evidence of this directly from the text:

Several days later, after the soldiers had searched every part of the house and gone into all the local towns and villages with a picture of the little boy, one of them discovered the pile of clothes and the pair of boots that Bruno had left near the fence.  

In this quotation, the reader should notice that the soldiers are placed directly on a search for Bruno.  The search begins at Bruno's home near Auschwitz.  The search gets wider when it extends to all of the surrounding small towns.  In fact, the family continues searching (even by looking in their old home in Berlin) after Bruno's clothes are found.