Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets", "python using java slippers"
"hanh van dam snippets" » "thanh van dam snippets", "khanh van dam snippets", "hanh va dam snippets", "hanh van nam snippets", "hanh van dao snippets", "hanh van dau snippets", "hanh van dam 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.

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

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