Perhaps you should try some spelling variations:
"nhanh van trinh snippets" » "thanh van trinh snippets", "nhan van trinh snippets", "nhanh va trinh snippets", "nhanh van thinh snippets", "nhanh van tinh snippets", "nhanh dan trinh snippets", "nhanh van 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: (((("nhanh van 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: (((("nhanh van trinh snippets") OR ("dung java java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( nhanh van trinh snippets ) or ( dung java java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("nhanh van trinh snippets") or ("dung java java snippets"))) or ("locating bug code snippets"))*.