Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"phan duc bo snippets" » "phan duc code snippets", "pham duc bo snippets", "phan tu bo snippets", "phan dau bo snippets", "phan duc bao snippets", "phan duc mo snippets", "phan duc so 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: (((("phan duc bo snippets") or ("python using java snippets"))) or ("locating bug core snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("phan duc bo snippets") OR ("python using java snippets"))) OR ("locating bug core snippets")).
• Removing quotes may allow a broader search: (((( phan duc bo snippets ) or ( python using java snippets ))) or ( locating bug core snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("phan duc bo snippets") or ("python using java snippets"))) or ("locating bug core snippets"))*.