Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets", "python using java slippers"
"duc cac dung snippets" » "duc cach dung snippets", "duc cac duong snippets", "duc tac dung snippets", "duoc cac dung snippets", "tuc cac dung snippets", "muc cac dung snippets", "duc cac dung 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: (((("duc cac dung snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
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