Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets", "python using java slippers"
"truan doi ta snippets" » "truyen doi ta snippets", "quan doi ta snippets", "khuan doi ta snippets", "truan doi tac snippets", "truan doi tai snippets", "truan doi tan snippets", "truan doi ta 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: (((("truan doi ta snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
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