Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets", "python using java slippers"
"minh ky duc snippets" » "kinh ky duc snippets", "minh ly duc snippets", "trinh ky duc snippets", "minh ky tuc snippets", "minh ky duy snippets", "minh ky uc snippets", "minh ky duc 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: (((("minh ky duc snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
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