Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"van det co snippets" » "van de co snippets", "van der co snippets", "van den co snippets", "van dep co snippets", "van deu co 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: (((("van det co 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 det co snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( van det co snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("van det co snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.