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