Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets", "python using java slippers"
"pha cac hien snippets" » "pha cac chien snippets", "pha cac phien snippets", "pha cac bien snippets", "phan cac hien snippets", "phap cac hien snippets", "pha cau hien snippets", "pha cac hien 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: (((("pha cac hien snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
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