Perhaps you should try some spelling variations:
"dung nhiem trong snippets" » "dung nhiem trung snippets", "dung nghiep trong snippets", "dung nhin trong snippets", "dung nghien trong snippets", "dung chien trong snippets", "dung hieu trong snippets", "dung nhiem 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 ("dung nhiem 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 ("dung nhiem trong snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( using a code snippets ) or ( dung nhiem trong snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("using a code snippets") or ("dung nhiem trong snippets"))) or ("locating bug code snippets"))*.