Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets", "python using java slippers"
"dac xuan duc snippets" » "dao xuan duc snippets", "bach xuan duc snippets", "dang xuan duc snippets", "dac tran duc snippets", "dac phan duc snippets", "dac xuan huy snippets", "dac xuan 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: (((("dac xuan 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: (((("dac xuan duc snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
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