Perhaps you should try some spelling variations:
"hanh java java snippets" » "hanh va java snippets"
"dung nam code slippers" » "dong nam code slippers", "dung lam code slippers", "sung nam code slippers", "dung nam co slippers", "dung lbm code slippers", "dung nam de slippers"
"locating bug code snippets" » "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: (((("hanh java java snippets") or ("dung nam code slippers"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("hanh java java snippets") OR ("dung nam code slippers"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( hanh java java snippets ) or ( dung nam code slippers ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("hanh java java snippets") or ("dung nam code slippers"))) or ("locating bug code snippets"))*.