Perhaps you should try some spelling variations:
"cong dung cog snippets" » "cuong dung cog snippets", "cong dong cog snippets", "cong luong cog snippets", "cong dung cong snippets", "cong dung co snippets", "cong dung coc snippets"
"cong dung con snippets" » "cuong dung con snippets", "cong dong con snippets", "cong luong con snippets", "cong dung cong snippets", "cong dung von snippets", "cong dung co 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 dung cog snippets") or ("cong dung con snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("cong dung cog snippets") OR ("cong dung con snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( cong dung cog snippets ) or ( cong dung con snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("cong dung cog snippets") or ("cong dung con snippets"))) or ("locating bug code snippets"))*.