Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"phan thu hoi snippets" » "phan thuc hoi snippets", "phan tu hoi snippets", "phan thi hoi snippets", "phan thu hoai snippets", "phan thu phoi snippets", "phan thu hai 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 thu hoi 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 thu hoi snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( phan thu hoi snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("phan thu hoi snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.