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