Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"van den cho snippets" » "van den code snippets", "van de cho snippets", "van der cho snippets", "ban den cho snippets", "van dien cho snippets", "van nen cho snippets", "van ben cho snippets"
"python using java snippets" » "python using data 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 den cho snippets") or ("python using java snippets"))) or ("locating bug core snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("van den cho snippets") OR ("python using java snippets"))) OR ("locating bug core snippets")).
• Removing quotes may allow a broader search: (((( van den cho snippets ) or ( python using java snippets ))) or ( locating bug core snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("van den cho snippets") or ("python using java snippets"))) or ("locating bug core snippets"))*.