Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"phan lan toc snippets" » "phan lan code snippets", "phan lap toc snippets", "phan van toc snippets", "phan loai toc snippets", "phan dan toc snippets", "phan luan tot snippets", "phan lan thom 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 lan toc 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 lan toc snippets") OR ("python using java snippets"))) OR ("locating bug core snippets")).
• Removing quotes may allow a broader search: (((( phan lan toc snippets ) or ( python using java snippets ))) or ( locating bug core snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("phan lan toc snippets") or ("python using java snippets"))) or ("locating bug core snippets"))*.