Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"cho doi den snippets" » "cho doi code snippets", "cho moi den snippets", "cuoc doi den snippets", "cho tuoi den snippets", "cho doi dien snippets", "cho di den snippets", "cho doi dan 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: (((("cho doi 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: (((("cho doi den snippets") OR ("python using java snippets"))) OR ("locating bug core snippets")).
• Removing quotes may allow a broader search: (((( cho doi den snippets ) or ( python using java snippets ))) or ( locating bug core snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("cho doi den snippets") or ("python using java snippets"))) or ("locating bug core snippets"))*.