Perhaps you should try some spelling variations:
"dung cau hat snippets" » "dung chau hat snippets", "dung cu hat snippets", "dung cac hat snippets", "dung cao chat snippets", "dung cuu phat snippets", "dung cau hat slippers"
"dang ung java snippets" » "dang hung java snippets", "dang dung java snippets", "dang tung java snippets", "dang using java snippets", "dang ngu java snippets", "dang ung va snippets", "dang ung 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 cau hat snippets") or ("dang ung java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("dung cau hat snippets") OR ("dang ung java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dung cau hat snippets ) or ( dang ung java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dung cau hat snippets") or ("dang ung java snippets"))) or ("locating bug code snippets"))*.