Perhaps you should try some spelling variations:
"dang trinh java snippets" » "dang tinh java snippets", "dan trinh java snippets", "dong trinh java snippets", "dang trinh java slippers"
"dong luc code snippets" » "nang luc code snippets", "dong lbm code snippets", "dong luc cong snippets", "dong luc code slippers"
"locating bug code snippets" » "locating bug code slippers", "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: "((((\"dong luc code snippets\") OR (\"dang trinh java snippets\"))) OR (\"locating bug code snippets\"))~".
• Removing quotes may allow a broader search: (((( dong luc code snippets ) OR ( dang trinh java snippets ))) OR ( locating bug code snippets ))~.
• Adding a wildcard symbol may retrieve word variants: (((("dong luc code snippets") OR ("dang trinh java snippets"))) OR ("locating bug code snippets"))*.