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