Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"van dan de snippets" » "van dan code snippets", "van ban de snippets", "ban dan de snippets", "van dao de snippets", "van dan den snippets", "van dang de snippets", "van van de 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 dan de 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 dan de snippets") OR ("python using java snippets"))) OR ("locating bug core snippets")).
• Removing quotes may allow a broader search: (((( van dan de snippets ) or ( python using java snippets ))) or ( locating bug core snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("van dan de snippets") or ("python using java snippets"))) or ("locating bug core snippets"))*.