Perhaps you should try some spelling variations:
"dang luong cho snippets" » "nang luong cho snippets", "hang luong cho snippets", "dang cuong cho snippets", "dang luong chu snippets", "dang luong khoa snippets", "dang luong theo snippets"
"hang java java snippets" » "hang va java snippets"
"locating bug code snippets" » "locating bung code snippets", "locating bugs code snippets", "locating bug core 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: (((("dang luong cho snippets") or ("hang java java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("dang luong cho snippets") OR ("hang java java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dang luong cho snippets ) or ( hang java java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dang luong cho snippets") or ("hang java java snippets"))) or ("locating bug code snippets"))*.