Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"cad thi hoa snippets" » "cau thi hoa snippets", "can thi hoa snippets", "cao thi hoa snippets", "cad thi hoan snippets", "cad thi ha snippets", "cad thi hong 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: (((("cad thi 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: (((("cad thi hoa snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( cad thi hoa snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("cad thi hoa snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.