Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"thoa van der snippets" » "thoai van der snippets", "hoa van der snippets", "tho van der snippets", "thoa van de 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: (((("thoa van der snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("thoa van der snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( thoa van der snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("thoa van der snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.