Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"ma van core snippets" » "ma many core snippets", "ma van hoe snippets", "ma van cong snippets", "mai van core snippets", "va van core snippets", "ha van core snippets"
"locating bug code snippets" » "locating bung code snippets", "locating bugs code 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: (((("python using java snippets") or ("ma 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 ("ma van core snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( python using java snippets ) or ( ma van core snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("python using java snippets") or ("ma van core snippets"))) or ("locating bug code snippets"))*.