Perhaps you should try some spelling variations:
"cong cong core snippets" » "cong dong core snippets", "trong cong core snippets", "dang cong core snippets", "cong cong co snippets", "cong cong che snippets", "cong cong coc snippets"
"dung cong core snippets" » "dung cong co snippets", "dung cong che snippets", "dung cong coc snippets", "dung trong core snippets"
"locating bug code snippets" » "locating bung code snippets", "locating bugs code snippets"

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

• If you are trying to use Boolean operators, they must be ALL CAPS: (((("cong cong core snippets") OR ("dung cong core snippets"))) OR ("locating bug code snippets"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((((\"cong cong core snippets\") OR (\"dung cong core snippets\"))) or (\"locating bug code snippets\"))~".
• Removing quotes may allow a broader search: (((( cong cong core snippets ) OR ( dung cong core snippets ))) or ( locating bug code snippets ))~.
• Adding a wildcard symbol may retrieve word variants: (((("cong cong core snippets") OR ("dung cong core snippets"))) or ("locating bug code snippets"))*.