Perhaps you should try some spelling variations:
"cong cua code snippets" » "cong cua cong snippets", "cong cua co snippets", "cong cfd code snippets", "cong cu code snippets", "dong cua code snippets", "huong cua code snippets", "cong cua code slippers"
"dang su code snippets" » "dan su code snippets", "dung su code snippets", "dong su code snippets", "dang su code slippers"
"locating bug code snippets" » "locating bug code slippers", "locating bung code snippets", "locating bugs code 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: (((("dang su code snippets") or ("cong cua code snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("dang su code snippets") OR ("cong cua code snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dang su code snippets ) or ( cong cua code snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dang su code snippets") or ("cong cua code snippets"))) or ("locating bug code snippets"))*.