Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"phan bia doi snippets" » "phan ba doi snippets", "phan giai doi snippets", "phan bien doi snippets", "phan bia hoi snippets", "phan gia doi snippets"
"locating bug code snippets" » "locating bung code snippets", "locating bugs code snippets", "locating bug core 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 bia doi snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("phan bia doi snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( phan bia doi snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("phan bia doi snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.