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