Perhaps you should try some spelling variations:
"cong cua hieu snippets" » "cong cua chieu snippets", "cong cua dieu snippets", "cong cuu hieu snippets", "cong cu hieu snippets", "dong cua hieu snippets", "huong cua hieu snippets", "cong cua hieu 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 cua hieu 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 cua hieu snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dung va java snippets ) or ( cong cua hieu snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dung va java snippets") or ("cong cua hieu snippets"))) or ("locating bug code snippets"))*.