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