Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"cong cac tot snippets" » "cuong cac tot snippets", "cong tac tot snippets", "cong cau tot snippets", "cong cac toi snippets", "cong cac toc snippets", "cong ca tot 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: (((("cong cac tot snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("cong cac tot snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( cong cac tot snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("cong cac tot snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.