Perhaps you should try some spelling variations:
"locating bugs code snippets" » "locating bug code snippets", "locating bugs code slippers"
"luong java java snippets" » "luong va java snippets", "luong java java slippers"
"dung he danh snippets" » "dung cho danh snippets", "dung he dan snippets", "dung le danh snippets", "dung te danh snippets", "dung he danh slippers"

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 he danh snippets") or ("luong java java snippets"))) or ("locating bugs code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("dung he danh snippets") OR ("luong java java snippets"))) OR ("locating bugs code snippets")).
• Removing quotes may allow a broader search: (((( dung he danh snippets ) or ( luong java java snippets ))) or ( locating bugs code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dung he danh snippets") or ("luong java java snippets"))) or ("locating bugs code snippets"))*.