Perhaps you should try some spelling variations:
"cong tong cuc snippets" » "cong trong cuc snippets", "cong thong cuc snippets", "cong dong cuc snippets", "cong trong cuoc snippets", "cong thong cua snippets", "cong cong chuc snippets"
"dung java java snippets" » "dung va java snippets"
"locating bug code snippets" » "locating bung code snippets", "locating bugs code snippets", "locating bug core snippets"

You may be able to get more results by adjusting your search query.

• The words AND, OR and NOT may confuse the search; try adding quotes: "((((\"cong tong cuc snippets\") OR (\"dung java java snippets\"))) OR (\"locating bug code snippets\"))~".
• Removing quotes may allow a broader search: (((( cong tong cuc snippets ) OR ( dung java java snippets ))) OR ( locating bug code snippets ))~.
• Adding a wildcard symbol may retrieve word variants: (((("cong tong cuc snippets") OR ("dung java java snippets"))) OR ("locating bug code snippets"))*.