Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets", "python using java slippers"
"dinh thu duc snippets" » "dinh thuy duc snippets", "dinh thuc duc snippets", "dinh thi duc snippets", "dinh thu tuc snippets", "dinh tho duc snippets", "dinh thu muc snippets", "dinh thu 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: (((("dinh thu duc snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("dinh thu duc snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
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