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