Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"moi cho long snippets" » "moi cho cong snippets", "moi cho lon snippets", "moi cho dong snippets", "moi co long snippets", "hoi cho long snippets", "mo cho long 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: (((("moi cho long snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("moi cho long snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( moi cho long snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("moi cho long snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.