Positional operators ensure that your search terms are contextually related. It is possible gain performance improvements on using the positional Within operator.
A few tips to gain effective search performance:
- Choose W/3 - W/5 to search in approximately the same phrase.
- Choose W/15 to search in approximately the same sentence.
- Choose W/50 to search in approximately the same paragraph.
These queries are suggestions on using an efficient search range, it is up to the end-user to find out using exploratory search which query range fits best for the search approach.
It is advised to always choose a number below 100 to prevent too many search results with unrelated search terms.
6.4; 6.4 Service Pack 1