Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets", "python using java slippers"
"diem ca san snippets" » "diem cau san snippets", "diem can san snippets", "diem cap san snippets", "diem cac san snippets", "diem cua san snippets", "diem ca dan snippets", "diem ca san slippers"
"locating bug code snippets" » "locating bug code slippers", "locating bung code snippets", "locating bugs code snippets", "locating bug core snippets"

Try widening your search to All Fields.

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• Performing a fuzzy search may retrieve terms with similar spellings: (((("diem ca san snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("diem ca san snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
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