Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"luc toi hoat snippets" » "luc toan hoat snippets", "luc thi hoa snippets", "luc thi hoan snippets", "luc tai hoat snippets", "luc thi hoat snippets", "luc moi hoat 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: (((("luc toi hoat snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("luc toi hoat snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( luc toi hoat snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("luc toi hoat snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.