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