Perhaps you should try some spelling variations:
"huong cho con snippets" » "luong cho con snippets", "huong co con snippets", "thuong chi con snippets", "huong cho cong snippets", "huong cho lon snippets", "huong cho can snippets"
"dung de code snippets" » "dung he code snippets", "dung dat code snippets", "dung de 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: (((("dung de code snippets") or ("huong cho con snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("dung de code snippets") OR ("huong cho con snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dung de code snippets ) or ( huong cho con snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dung de code snippets") or ("huong cho con snippets"))) or ("locating bug code snippets"))*.