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