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Searching for just a few words should be enough to get started. If you need to make more complex queries, use the tips below to guide you.

Boolean operators
This OR that
This AND that
This NOT that
Must include "This" and "That"
This That
Must not include "That"
This -That
"This" is optional
This +That
Exact phrase "This That"
"This That"
Grouping
(this AND that) OR (that AND other)

PowerPoint Illustrations

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