Perhaps you should try some spelling variations:
"dung luat tuc snippets" » "dung luan tuc snippets", "dung quat tuc snippets", "dung cua tuc snippets", "dung luat thue snippets", "dung luat tuc 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 luat tuc 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 luat tuc snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( using a code snippets ) or ( dung luat tuc snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("using a code snippets") or ("dung luat tuc snippets"))) or ("locating bug code snippets"))*.