Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"van van core snippets" » "van many core snippets", "van van hoe snippets", "van van cong snippets", "van ban core snippets", "tan van core snippets", "san van core snippets"
"locating bug code snippets" » "locating bung code snippets", "locating bugs code snippets"

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 ("van van core snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("python using java snippets") OR ("van van core snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( python using java snippets ) or ( van van core snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("python using java snippets") or ("van van core snippets"))) or ("locating bug code snippets"))*.