Perhaps you should try some spelling variations:
"dang hanh java snippets" » "dang thanh java snippets", "ban hanh java snippets", "dang van java snippets", "dang hanh va snippets", "dang hanh java slippers"
"dung cuu code snippets" » "dung cua code snippets", "dung cu code snippets", "dung cau code snippets", "dung cuu che snippets", "dung cuu cong snippets", "dung cuu de snippets", "dung cuu 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 hanh java snippets") or ("dung cuu code snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("dang hanh java snippets") OR ("dung cuu code snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dang hanh java snippets ) or ( dung cuu code snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dang hanh java snippets") or ("dung cuu code snippets"))) or ("locating bug code snippets"))*.