If several search words should be entered, the kind of the linkage can be selected here. The keyword OR stands for a hit of one of the entered search words in a document, the keyword AND for applying all search words in a document.

and or

Finally be range of the search can be indicated. You can choose the whole document, the meta-tag: DISCREPTION or the titles. According to standard the whole document is scanned.

full document
META-TAGs only
Page Title only