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