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