Perhaps you should try some spelling variations:
"doanh doanh toc snippets" » "toan doanh toc snippets", "doanh hoan toc snippets", "doanh thanh toc snippets", "doanh doanh cuoc snippets", "doanh doanh duoc snippets", "doanh doanh quoc snippets"
"using a code snippets" » "using a core snippets"
"locating bug code snippets" » "locating bug core snippets", "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 ("doanh doanh toc snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("using a code snippets") OR ("doanh doanh toc snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( using a code snippets ) or ( doanh doanh toc snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("using a code snippets") or ("doanh doanh toc snippets"))) or ("locating bug code snippets"))*.