Perhaps you should try some spelling variations:
"tung dan doanh snippets" » "tung van doanh snippets", "tung ban doanh snippets", "tung dao doanh snippets", "dung dan doanh snippets", "huong dan doanh snippets", "trung dai doanh snippets", "tung dan doanh 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 ("tung dan doanh snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("using a code snippets") OR ("tung dan doanh snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( using a code snippets ) or ( tung dan doanh snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("using a code snippets") or ("tung dan doanh snippets"))) or ("locating bug code snippets"))*.