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