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