Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets", "python using java slippers"
"van hoi lich snippets" » "van hoa lich snippets", "van hoc lich snippets", "van hoai linh snippets", "van choi lich snippets", "van hoai lich snippets", "van khoi lich snippets", "van hoi lich 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 hoi lich 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 hoi lich snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
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