Perhaps you should try some spelling variations:
"dang trinh java snippets" » "dang tinh java snippets", "dan trinh java snippets", "dong trinh java snippets", "dang trinh java slippers"
"chung cua code snippets" » "chung cu code snippets", "dung cua code snippets", "huong cua code snippets", "chung cua cong snippets", "chung cua co snippets", "chung cfd code snippets", "chung cua code slippers"
"locating bug code snippets" » "locating bug code slippers", "locating bung code snippets", "locating bugs code 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: (((("dang trinh java snippets") or ("chung cua code snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("dang trinh java snippets") OR ("chung cua code snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dang trinh java snippets ) or ( chung cua code snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dang trinh java snippets") or ("chung cua code snippets"))) or ("locating bug code snippets"))*.