Perhaps you should try some spelling variations:
conventions programming » prevention programming, communications programming
equations conventions » equations convection, nations conventions, equations conditions
definitions sources » definitions causes, definitions concepts
definition chapter » definitions chapter, recognition chapter, cognition chapter

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• Performing a fuzzy search may retrieve terms with similar spellings: equations conventions programming ((definition chapter) or (definitions sources)) citrus~.
• If you are trying to use Boolean operators, they must be ALL CAPS: equations conventions programming ((definition chapter) OR (definitions sources)) citrus.
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