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