Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"quan van do snippets" » "quan van code snippets", "luan van do snippets", "quan va do snippets", "quan luan do snippets", "quan van dao snippets", "quan van de snippets", "quan van du 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: (((("quan van do snippets") or ("python using java snippets"))) or ("locating bug core snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("quan van do snippets") OR ("python using java snippets"))) OR ("locating bug core snippets")).
• Removing quotes may allow a broader search: (((( quan van do snippets ) or ( python using java snippets ))) or ( locating bug core snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("quan van do snippets") or ("python using java snippets"))) or ("locating bug core snippets"))*.