Perhaps you should try some spelling variations:
"cong tinh sinh snippets" » "cong trinh sinh snippets", "cong vinh sinh snippets", "cong thanh sinh snippets", "cong tinh ninh snippets", "cong tinh binh snippets", "cong tinh hinh snippets", "cong tinh sinh 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 tinh sinh 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 tinh sinh snippets") OR ("dung java java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( cong tinh sinh snippets ) or ( dung java java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("cong tinh sinh snippets") or ("dung java java snippets"))) or ("locating bug code snippets"))*.