Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets", "python using java slippers"
"son cac dang snippets" » "son cao dang snippets", "son cac dan snippets", "son cac cong snippets", "ton cac dang snippets", "con cac dang snippets", "son bac dang snippets", "son cac dang 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: (((("son cac dang snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
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