Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"phong su do snippets" » "phong slu do snippets", "thong su do snippets", "phong tu do snippets", "phong su dao snippets", "phong su doi snippets", "phong so do 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: (((("phong su do snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("phong su do snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( phong su do snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("phong su do snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.