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