Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets", "python using java slippers"
"dao gap ninh snippets" » "dao lap ninh snippets", "dao gian ninh snippets", "dao bac ninh snippets", "tao gap ninh snippets", "dao giao ninh snippets", "dat ngap ninh snippets", "dao gap ninh 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: (((("dao gap ninh snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("dao gap ninh snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
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