1.Consider composing a query as 
outlining your information need 
more than a request for direct 
search procedure. Query words 
may not necessarily appear within 
the retrieved excerpts. Choosing 
the left edge on Adjust Settings 
scale will result in more strict 
dependence of the search procedure 
on your query. Selecting the 
righter position on the scale will 
include more additionally suggested 
information into the output materials. 

2.When the availale sources are
supposed to be scarce for 
information directly relevant 
to a query select on the Adjust 
Settings scale a position closer 
to the right. This will weaken the 
search criteria resulting in the 
output material being at least 
partially relevant to the query 
subject. 
When the availale sources are
supposed to be abundant of
information directly relevant to 
a query select on the Adjust 
Settings scale a position closer 
to the left. This will prevent the 
most indirectly relevant 
information from being included 
into the output material. 