Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"nhan nha so snippets" » "nhan ha so snippets", "nhan nho so snippets", "phan nha so snippets", "nhan nhat so snippets", "nhan nha o snippets", "nhan nha 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: (((("nhan nha so snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("nhan nha so snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( nhan nha so snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("nhan nha so snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.