Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets", "python using java slippers"
"dung den kha snippets" » "dung dien kha snippets", "dung de kha snippets", "dung dan kha snippets", "dung den kham snippets", "dung den ha snippets", "dung dien khoa snippets", "dung den kha 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: (((("dung den kha snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("dung den kha snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
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