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