Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets", "python using java slippers"
"fan tao mach snippets" » "fan tao bac snippets", "fan tao may snippets", "fan tim mach snippets", "tan tao mach snippets", "sang tao mach snippets", "nhan tao mach snippets", "fan tao mach 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: (((("fan tao mach snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("fan tao mach snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
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