Perhaps you should try some spelling variations:
"cong danh thin snippets" » "cuong danh thin snippets", "cong dan thin snippets", "cong thanh thin snippets", "cong canh thin snippets", "cong danh thanh snippets", "cong danh thang snippets", "cong danh thin 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 ("cong danh thin snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("using a code snippets") OR ("cong danh thin snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( using a code snippets ) or ( cong danh thin snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("using a code snippets") or ("cong danh thin snippets"))) or ("locating bug code snippets"))*.