Perhaps you should try some spelling variations:
"nhan duoc trinh snippets" » "nhan doc trinh snippets", "nhan quoc thinh snippets", "nhan duoc tren snippets", "nhan cuoc trinh snippets", "nhan quoc trinh snippets", "phan duoc trinh snippets", "nhan duoc trinh slippers"
"dung va java snippets" » "dung java java snippets", "dung va 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: (((("nhan duoc trinh snippets") or ("dung va java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("nhan duoc trinh snippets") OR ("dung va java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( nhan duoc trinh snippets ) or ( dung va java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("nhan duoc trinh snippets") or ("dung va java snippets"))) or ("locating bug code snippets"))*.