Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"phan tat den snippets" » "phan tap den snippets", "phan tan den snippets", "phan tct den snippets", "phan tac den snippets", "phan tot den snippets", "phan thai den 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 tat 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: (((("phan tat den snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( phan tat den snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("phan tat den snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.