Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets", "python using java slippers"
"van hoang va snippets" » "van hoan va snippets", "quan hoang va snippets", "tran hoang va snippets", "van hoang van snippets", "van hang va snippets", "van hoang ha snippets", "van hoang va 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.

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