Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"khoe va chan snippets" » "khoe ma chan snippets", "khoi va chan snippets", "khoan va chan snippets", "khoe va phan snippets", "khoe va cham snippets", "khoe va chat 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: (((("khoe va chan snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("khoe va chan snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
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• Adding a wildcard symbol may retrieve word variants: (((("khoe va chan snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.