Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets", "python using java slippers"
"len hoa thai snippets" » "len hong thai snippets", "len hoa phan snippets", "len hoa chat snippets", "yen hoa thai snippets", "dien hoa thai snippets", "tien hoa thai snippets", "len hoa thai 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: (((("len hoa thai snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
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