Perhaps you should try some spelling variations:
"trinh nhap cua snippets" » "trinh nha cua snippets", "trinh phap cua snippets", "trinh han cua snippets", "trinh nhat cua snippets", "trinh nhan cua snippets", "trinh nhap ca snippets"
"dung dat code snippets" » "dung va code snippets", "dung tai code snippets", "dung rate code snippets", "dung dat de snippets"
"locating bug code snippets" » "locating bung code snippets", "locating bugs code snippets"

You may be able to get more results by adjusting your search query.

• The words AND, OR and NOT may confuse the search; try adding quotes: "((((\"trinh nhap cua snippets\") OR (\"dung dat code snippets\"))) OR (\"locating bug code snippets\"))~".
• Removing quotes may allow a broader search: (((( trinh nhap cua snippets ) OR ( dung dat code snippets ))) OR ( locating bug code snippets ))~.
• Adding a wildcard symbol may retrieve word variants: (((("trinh nhap cua snippets") OR ("dung dat code snippets"))) OR ("locating bug code snippets"))*.