Perhaps you should try some spelling variations:
"khanh minh danh snippets" » "khanh linh danh snippets", "khanh vinh danh snippets", "thanh minh danh snippets", "khanh minh doanh snippets", "khanh minh dan snippets", "khanh minh dinh snippets", "khanh minh danh slippers"
"dung java java snippets" » "dung va java snippets", "dung java 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: (((("khanh minh danh snippets") or ("dung java java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("khanh minh danh snippets") OR ("dung java java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( khanh minh danh snippets ) or ( dung java java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("khanh minh danh snippets") or ("dung java java snippets"))) or ("locating bug code snippets"))*.