Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"lieu thuc ke snippets" » "lieu thuoc ke snippets", "lieu phuc ke snippets", "hieu thuc ke snippets", "lieu thuc te snippets", "lieu thuc ve snippets", "lieu chuc ke snippets"
"locating bug code snippets" » "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: (((("lieu thuc ke snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
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