Perhaps you should try some spelling variations:
"dang trong minh snippets" » "dung trong minh snippets", "dong trong minh snippets", "lang trong minh snippets", "dang truong minh snippets", "dang trong kinh snippets", "dang thong minh snippets", "dang trong minh 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: (((("dang trong minh snippets") or ("dung java java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("dang trong minh snippets") OR ("dung java java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dang trong minh snippets ) or ( dung java java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dang trong minh snippets") or ("dung java java snippets"))) or ("locating bug code snippets"))*.