Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets", "python using java slippers"
"tran ky dung snippets" » "than ky dung snippets", "toan ky dung snippets", "tran sy dung snippets", "tran ly dung snippets", "tran ky dang snippets", "tran ky vung snippets", "tran ky dung 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: (((("tran ky dung snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
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