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