Perhaps you should try some spelling variations:
"cong dung cua snippets" » "cuong dung cua snippets", "cong dong cua snippets", "cong luong cua snippets", "cong dung luan snippets", "cong dung cho 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 cua 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 cua snippets") OR ("cong dung con snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( cong dung cua snippets ) or ( cong dung con snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("cong dung cua snippets") or ("cong dung con snippets"))) or ("locating bug code snippets"))*.