Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"len choi cho snippets" » "len thoi cho snippets", "len troi cho snippets", "ben chi cho snippets", "len hoi cho snippets", "len choi chu snippets", "len nhoi cho 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: (((("len choi cho snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("len choi cho snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( len choi cho snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("len choi cho snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.