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