Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets", "python using java slippers"
"phap cua duc snippets" » "phap chua duc snippets", "phap lua duc snippets", "phat cua duc snippets", "phap cua tuc snippets", "phap cua nuoc snippets", "phap cua quoc snippets", "phap cua 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: (((("phap cua 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: (((("phap cua duc snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
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