Perhaps you should try some spelling variations:
"The compass exercises" » "The company exercises", "The commands exercises", "The class exercises"
"The compass series" » "The compass varies", "The comparison series", "The compass bearings"
"the compact series" » "the compact tries", "the compliant series", "the complete series"
"the complex series" » "the complex services", "the complex queries", "the complete series"

Try widening your search to All Fields.

You may be able to get more results by adjusting your search query.

• If you are trying to use Boolean operators, they must be ALL CAPS: (((((("The compass series") OR ("The compass exercises"))) OR ("the compact series"))) OR ("the complex series")).
• The words AND, OR and NOT may confuse the search; try adding quotes: "((((((\"The compass series\") OR (\"The compass exercises\"))) or (\"the compact series\"))) or (\"the complex series\"))".
• Removing quotes may allow a broader search: (((((( The compass series ) OR ( The compass exercises ))) or ( the compact series ))) or ( the complex series )).
• Adding a wildcard symbol may retrieve word variants: (((((("The compass series") OR ("The compass exercises"))) or ("the compact series"))) or ("the complex series"))*.