4.4.1.8.  Phrase search "" (specific order of terms)

For a phrase search (specific sequence of terms), place the entire search term in quotation marks.

Condition: All search terms must be found. There must be neither anything missing nor anything in between. There may be other terms outside the search term. The phrase search tolerates stemming[6] and decomposition of compound words.

Example:

A search with

"Screw with nut"

also finds

Hexagonhead screws with
Nuts

For a better understanding, two important differences between phrase search and exact search should be mentioned:

  • Stemming:

    Phrase search:

    " with flanged pipe "
    

    finds "with flared tube" (stemming tolerated)

    Exact search:

    { with flanged pipe }
    

    does not find "with flared pipe" (stemming not tolerated)

  • Compound words (mainly relevant in German):

    Phrase search:

    " screw with nut "
    

    also finds "cap screw with nut". (The compound word "cheese head screw" has been treated separately internally).

    Exact search:

    { Bolt with nut }
    

    does not find "cap screw with nut".




[6] stem reduction, normal form reduction of languages