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