Perhaps you should try some spelling variations:
"locating bugs code slippers" » "locating bug code slippers", "locating bugs code snippets"
"dang java java snippets" » "dang va java snippets"
"dung ke robot snippets" » "dung _ robot snippets", "dung a robot snippets", "dung so robot snippets", "dung kem robot snippets", "dung ket robot snippets", "dung he robot 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 java java snippets") or ("dung ke robot snippets"))) or ("locating bugs code slippers"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("dang java java snippets") OR ("dung ke robot snippets"))) OR ("locating bugs code slippers")).
• Removing quotes may allow a broader search: (((( dang java java snippets ) or ( dung ke robot snippets ))) or ( locating bugs code slippers )).
• Adding a wildcard symbol may retrieve word variants: (((("dang java java snippets") or ("dung ke robot snippets"))) or ("locating bugs code slippers"))*.