Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"dau hoi doi snippets" » "cau hoi doi snippets", "dai hoi doi snippets", "dan hoi doi snippets", "dau hoi doai snippets", "dau hoc doi snippets", "dau hoa doi 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: (((("dau hoi doi snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("dau hoi doi snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
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• Adding a wildcard symbol may retrieve word variants: (((("dau hoi doi snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.