Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"choi xu cau snippets" » "choi tu cau snippets", "chi xu cau snippets", "choi au cau snippets", "choi cu cau snippets", "choi su cau 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 cau 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 cau snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( choi xu cau snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("choi xu cau snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.