Perhaps you should try some spelling variations:
"using raw code snippets" » "using real code snippets", "using a code snippets", "using low code snippets", "using rate code snippets", "using raw code slippers"
"dung trong tan snippets" » "dung trong san snippets", "dung trong quan snippets", "dung trong cac snippets", "dung trong tan slippers"
"locating bug code 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 raw code snippets") or ("dung trong tan snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("using raw code snippets") OR ("dung trong tan snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( using raw code snippets ) or ( dung trong tan snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("using raw code snippets") or ("dung trong tan snippets"))) or ("locating bug code snippets"))*.