Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"doi phan co snippets" » "doi phan code snippets", "doi nhan co snippets", "hoi phan co snippets", "doc phan co snippets", "doi phan bo snippets", "doi phan cong snippets", "doi phan cac 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: (((("doi phan co snippets") or ("python using java snippets"))) or ("locating bug core snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("doi phan co snippets") OR ("python using java snippets"))) OR ("locating bug core snippets")).
• Removing quotes may allow a broader search: (((( doi phan co snippets ) or ( python using java snippets ))) or ( locating bug core snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("doi phan co snippets") or ("python using java snippets"))) or ("locating bug core snippets"))*.