Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"cong cong cuc snippets" » "cong cong code snippets", "cong dong cuc snippets", "trong cong cuc snippets", "dung cong cuc snippets", "cong cong chuc snippets", "cong cong cuoc snippets", "cong cong cu 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 cuc 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 cuc snippets") OR ("dung java java snippets"))) OR ("locating bug core snippets")).
• Removing quotes may allow a broader search: (((( cong cong cuc snippets ) or ( dung java java snippets ))) or ( locating bug core snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("cong cong cuc snippets") or ("dung java java snippets"))) or ("locating bug core snippets"))*.