Tack “&udm=14” on to the end of a normal search, and you’ll be booted into the clean 10 blue links interface. While Google might not let you set this as a default, if you have a way to automatically edit the Google search URL, you can create your own defaults.
The operator for ensuring something appeared in a search used to be “+”, but they stopped using that for some ???mYsTeRiOuS rEaSoN???