Choosing the right search terms is the key to finding the information you need. Start with the obvious ? if you're looking for general information on the "Treblinka Death Camp" try typing Treblinka.
But it's often advisable to use multiple search terms; if you want to find pages on "Aktion Reinhard" try typing Belzec, Sobibor, or Treblinka either together in a single search, or by themselves.
Searches are NOT case sensitive. All letters, regardless of how you type them, will be understood as lower case. For example, searches for "Auschwitz", "auschwitz" and "AuschWitZ" will all return the same results.