Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"pham nhat co snippets" » "pham nhat cho snippets", "pham nhat so snippets", "pham chat co snippets", "phan nhat co 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 nhat co 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 nhat co snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( pham nhat co snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("pham nhat co snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.