![](images1/spacer.gif) |
![](images1/spacer.gif)
|
Symbol |
Example |
Search results |
![](images1/spacer.gif) |
![](images1/spacer.gif)
none |
![](images1/spacer.gif) |
![](images1/spacer.gif)
solar energy |
![](images1/spacer.gif) |
![](images1/spacer.gif)
Finds results that contain either or both of these words.
![](images1/spacer.gif)
|
![](images1/spacer.gif) |
quotes |
![](images1/spacer.gif) |
"solar energy" |
![](images1/spacer.gif) |
Finds results that contain this phrase.
![](images1/spacer.gif) |
![](images1/spacer.gif) |
plus signs |
![](images1/spacer.gif) |
+biodiesel +buses |
![](images1/spacer.gif) |
Finds results that contain both these words.
![](images1/spacer.gif)
|
![](images1/spacer.gif) |
minus sign |
![](images1/spacer.gif) |
lighting -daylighting |
![](images1/spacer.gif) |
Finds results that contain the word lighting but not the word daylighting.
![](images1/spacer.gif)
|
|
Technique |
Example |
Search results |
![](images1/spacer.gif) |
![](images1/spacer.gif) word variations |
![](images1/spacer.gif) |
![](images1/spacer.gif) truck |
![](images1/spacer.gif) |
![](images1/spacer.gif) Finds results that contain the words truck, trucks, trucking, trucked, etc.
|
![](images1/spacer.gif) |
title: |
![](images1/spacer.gif) |
title:geothermal |
![](images1/spacer.gif) |
Finds results that contain this word in the document title.
|
![](images1/spacer.gif) |
title: and quotes |
![](images1/spacer.gif) |
title:"wind maps" |
![](images1/spacer.gif) |
Finds results that contain this phrase in the document title.
|
|