Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"pho va den snippets" » "phoi va den snippets", "pho ha den snippets", "pho da den snippets", "pho va dien snippets", "pho van den snippets", "pho va de 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: (((("pho va den snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("pho va den snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( pho va den snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("pho va den snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.