Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"phan am son snippets" » "phan cam son snippets", "phan ham son snippets", "phan lam son snippets", "phan sam son snippets", "phan nam son 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 am son 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 am son snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( phan am son snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("phan am son snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.