Perhaps you should try some spelling variations:
"dong phan cac snippets" » "dung phan cac snippets", "cong phan cac snippets", "dong chan cac snippets", "dong nhan cach snippets", "dong phan dau snippets", "dong phan lap snippets"
"dung bug code snippets" » "dung dung code snippets", "dung hung code snippets", "dung rung code snippets", "dung bug core snippets"
"locating bug code snippets" » "locating bug core 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: "((((\"dong phan cac snippets\") OR (\"dung bug code snippets\"))) OR (\"locating bug code snippets\"))~".
• Removing quotes may allow a broader search: (((( dong phan cac snippets ) OR ( dung bug code snippets ))) OR ( locating bug code snippets ))~.
• Adding a wildcard symbol may retrieve word variants: (((("dong phan cac snippets") OR ("dung bug code snippets"))) OR ("locating bug code snippets"))*.