Perhaps you should try some spelling variations:
"duong cong code snippets" » "dung cong code snippets", "luong cong code snippets", "duong trong code snippets", "duong cong cong snippets", "duong cong co snippets", "duong cong che snippets", "duong cong code slippers"
"dang vinh java snippets" » "dang dinh java snippets", "dang sinh java snippets", "dang tinh java snippets", "dang trinh java snippets", "dang vinh java 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 vinh java snippets") or ("duong cong code snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("dang vinh java snippets") OR ("duong cong code snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dang vinh java snippets ) or ( duong cong code snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dang vinh java snippets") or ("duong cong code snippets"))) or ("locating bug code snippets"))*.