Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"pham man den snippets" » "pham van den snippets", "pham ma den snippets", "pham lan den snippets", "pham ban den snippets", "pham dan 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: (((("pham man 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: (((("pham man den snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( pham man den snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("pham man den snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.