Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets", "python using java slippers"
"duy sang luc snippets" » "duy van luc snippets", "duy can luc snippets", "duy anh luc snippets", "duy nang luc snippets", "duy dong luc snippets", "duy sang tac snippets", "duy sang luc 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 sang luc snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("duy sang luc snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
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