Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"van son don snippets" » "van son code snippets", "van dong don snippets", "van cong don snippets", "van sung don snippets", "van song don snippets", "van hon don snippets", "van son con 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 son don 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 son don snippets") OR ("python using java snippets"))) OR ("locating bug core snippets")).
• Removing quotes may allow a broader search: (((( van son don snippets ) or ( python using java snippets ))) or ( locating bug core snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("van son don snippets") or ("python using java snippets"))) or ("locating bug core snippets"))*.