Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"pham do da snippets" » "pham doi da snippets", "pham mo da snippets", "pham o da snippets", "pham do dai snippets", "pham do dac snippets", "pham do dan 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 do da 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 do da snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( pham do da snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("pham do da snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.