Perhaps you should try some spelling variations:
"cuon danh het snippets" » "cuong danh het snippets", "cuoi dan het snippets", "cuon sach het snippets", "cuon danh viet snippets", "cuon danh hieu snippets", "cuon danh bat snippets", "cuon danh het slippers"
"dang va java snippets" » "dang van java snippets", "dang vat java snippets", "hang va java snippets", "dang java java snippets", "dang 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: (((("dang va java snippets") or ("cuon danh het snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("dang va java snippets") OR ("cuon danh het snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dang va java snippets ) or ( cuon danh het snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dang va java snippets") or ("cuon danh het snippets"))) or ("locating bug code snippets"))*.