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