Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets", "python using java slippers"
"nhan hoc hap snippets" » "nha hoc hap snippets", "nhan hoa hap snippets", "than hoc hap snippets", "nhan hoc phap snippets", "nhan hoc nhap snippets", "nhan hoc tap snippets", "nhan hoc hap 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: (((("nhan hoc hap snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("nhan hoc hap snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
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