Perhaps you should try some spelling variations:
"dung huong com snippets" » "dung thuong com snippets", "dung phuong com snippets", "dong huong com snippets", "dung huong co snippets", "dung huong cuoc snippets", "dung thuong con snippets"
"dung cuu trinh snippets" » "dung cuu tinh snippets", "dung cuu trich snippets", "dung qua trinh snippets", "dung cua trinh snippets", "dung cu trinh snippets", "dung cau trinh 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 cuu trinh snippets") or ("dung huong com snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("dung cuu trinh snippets") OR ("dung huong com snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dung cuu trinh snippets ) or ( dung huong com snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dung cuu trinh snippets") or ("dung huong com snippets"))) or ("locating bug code snippets"))*.