Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"pham da di snippets" » "pham dac di snippets", "pham dat di snippets", "pham dau di snippets", "pham pa di snippets", "pham da gi snippets", "pham ma di 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 da di 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 da di snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( pham da di snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("pham da di snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.