Perhaps you should try some spelling variations:
"doi duy thinh snippets" » "doi duc thinh snippets", "doi quy trinh snippets", "doi duy khanh snippets", "do duy thinh snippets", "doi day thinh snippets", "doi quy thinh snippets", "doi duy thinh 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: (((("doi duy thinh snippets") or ("dung java java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("doi duy thinh snippets") OR ("dung java java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( doi duy thinh snippets ) or ( dung java java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("doi duy thinh snippets") or ("dung java java snippets"))) or ("locating bug code snippets"))*.