Perhaps you should try some spelling variations:
"luan danh code snippets" » "luan thanh code snippets", "luan van code snippets", "luan nang code snippets", "luan danh co snippets", "luan danh code slippers"
"dung vat code snippets" » "dung va code snippets", "dong vat code snippets", "dung dat code snippets", "dung rate code snippets", "dung vat co snippets", "dung vat de snippets", "dung vat code slippers"
"locating bug code snippets" » "locating bug code slippers", "locating bung code snippets", "locating bugs code snippets"

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: (((("luan danh code snippets") or ("dung vat code snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("luan danh code snippets") OR ("dung vat code snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( luan danh code snippets ) or ( dung vat code snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("luan danh code snippets") or ("dung vat code snippets"))) or ("locating bug code snippets"))*.