Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets", "python using java slippers"
"dau tren ban snippets" » "dau tien ban snippets", "dat tren ban snippets", "dau tieng ban snippets", "dau trien ban snippets", "dau tren san snippets", "dau trong ban snippets", "dau tren ban 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: (((("python using java snippets") or ("dau tren ban snippets"))) or ("locating bug code snippets"))~.
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