Perhaps you should try some spelling variations:
"dong trinh mo snippets" » "cong trinh mo snippets", "dong tinh mo snippets", "dong tranh mo snippets", "dong trinh do snippets", "dong trinh co snippets", "dong trinh hoa snippets"
"dung uong java snippets" » "dung huong java snippets", "dung luong java snippets", "dung cong java snippets", "dung using 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: (((("dung uong java snippets") or ("dong trinh mo snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("dung uong java snippets") OR ("dong trinh mo snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dung uong java snippets ) or ( dong trinh mo snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dung uong java snippets") or ("dong trinh mo snippets"))) or ("locating bug code snippets"))*.