Forum Moderators: open
<added>default is to search the web.</added>
The days that the Google interface was simple are over: try to make sense of these: [google.be...] and [google.ch...] .
BTW: the language tag doesn't do much for 'seacrh in this language'.
If you want to found when users restrict searches, you have to meet the qualifications, which are either to have a site in local language, or to have a site with local domain or local hosting.
This is the basics. Not touching on problems with growing differences between what is shown on any given Google site.