Perhaps you should try some spelling variations:
"trong doi code snippets" » "trong doi cong snippets", "trong doi co snippets", "trong doi de snippets", "trong doi code slippers"
"using _ code snippets" » "using _ 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: "((((\"using _ code snippets\") OR (\"trong doi code snippets\"))) OR (\"locating bug code snippets\"))~".
• Removing quotes may allow a broader search: (((( using _ code snippets ) OR ( trong doi code snippets ))) OR ( locating bug code snippets ))~.
• Adding a wildcard symbol may retrieve word variants: (((("using _ code snippets") OR ("trong doi code snippets"))) OR ("locating bug code snippets"))*.