Perhaps you should try some spelling variations:
"trinh toan tien snippets" » "tinh toan tien snippets", "thanh toan tien snippets", "trinh han tien snippets", "trinh toan tieng snippets", "trinh toan bien snippets", "trinh toan vien snippets", "trinh toan tien slippers"
"dung java java snippets" » "dung va java snippets", "dung java java slippers"
"locating bug code snippets" » "locating bug code slippers", "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: (((("trinh toan tien snippets") or ("dung java java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("trinh toan tien snippets") OR ("dung java java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( trinh toan tien snippets ) or ( dung java java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("trinh toan tien snippets") or ("dung java java snippets"))) or ("locating bug code snippets"))*.