Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"cach co dan slippers" » "cach con dan slippers", "cac co dan slippers", "cach noi dan slippers", "cach co ban slippers", "cach ca dan slippers", "cach cao dang slippers", "cach co dan slippery", "cach co dan grippers"
"locating bug code snippets" » "locating bung code snippets", "locating bugs code snippets", "locating bug core snippets"

Try widening your search to All Fields.

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: (((("cach co dan slippers") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("cach co dan slippers") OR ("python using java snippets"))) OR ("locating bug code snippets")).
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• Adding a wildcard symbol may retrieve word variants: (((("cach co dan slippers") or ("python using java snippets"))) or ("locating bug code snippets"))*.