Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets", "python using java slippers"
"ca san kinh snippets" » "ca van kinh snippets", "ca han kinh snippets", "ca san tinh snippets", "cac san kinh snippets", "cua san kinh snippets", "ca dan kinh snippets", "ca san kinh 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: (((("ca san kinh snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
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