Perhaps you should try some spelling variations:
"dung tru trinh snippets" » "dung tra trinh snippets", "dung tru tinh snippets", "dung tieu trinh snippets", "dung tri trinh snippets", "dung thu trinh snippets", "dung tu trinh snippets", "dung tru trinh slippers"
"using a code snippets" » "using a core snippets", "using a code slippers"
"locating bug code snippets" » "locating bug core 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: "((((\"using a code snippets\") OR (\"dung tru trinh snippets\"))) OR (\"locating bug code snippets\"))~".
• Removing quotes may allow a broader search: (((( using a code snippets ) OR ( dung tru trinh snippets ))) OR ( locating bug code snippets ))~.
• Adding a wildcard symbol may retrieve word variants: (((("using a code snippets") OR ("dung tru trinh snippets"))) OR ("locating bug code snippets"))*.