Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets", "python using java slippers"
"duy thu than snippets" » "duy thu thang snippets", "duy thu thanh snippets", "duy thuy than snippets", "huy thu than snippets", "duy tu than snippets", "duy thieu than snippets", "duy thu than 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: (((("duy thu than snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
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