Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"luc hoi den snippets" » "luc hoi code snippets", "luc khoi den snippets", "luc hoc den snippets", "lu hoi den snippets", "luc hoi dien snippets", "luc hoi dan snippets", "luc moi den 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: (((("luc hoi den snippets") or ("python using java snippets"))) or ("locating bug core snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("luc hoi den snippets") OR ("python using java snippets"))) OR ("locating bug core snippets")).
• Removing quotes may allow a broader search: (((( luc hoi den snippets ) or ( python using java snippets ))) or ( locating bug core snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("luc hoi den snippets") or ("python using java snippets"))) or ("locating bug core snippets"))*.