Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"duoc doi deu snippets" » "cuoc doi deu snippets", "duoc hoi deu snippets", "luoc doi deu snippets", "duoc doi dau snippets", "duoc doi de snippets", "duoc moi dieu snippets"
"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: (((("duoc doi deu snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("duoc doi deu snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
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• Adding a wildcard symbol may retrieve word variants: (((("duoc doi deu snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.