Perhaps you should try some spelling variations:
"dong nhat trong snippets" » "dong nhat trang snippets", "dong chat trong snippets", "dong nhan trong snippets", "dang nhat trong snippets", "cong nhat trong snippets", "dung nhat trong snippets", "dong nhat trong slippers"
"using a code snippets" » "using a core snippets", "using a code slippers"
"locating bug code snippets" » "locating bug core snippets", "locating bug code slippers", "locating bung code snippets", "locating bugs code 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: (((("using a code snippets") or ("dong nhat trong snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("using a code snippets") OR ("dong nhat trong snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( using a code snippets ) or ( dong nhat trong snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("using a code snippets") or ("dong nhat trong snippets"))) or ("locating bug code snippets"))*.