Perhaps you should try some spelling variations:
"nhung cau code snippets" » "chung cu code snippets", "nhung bai code snippets", "nhu cau code snippets", "nhung cau cong snippets", "nhung cau de snippets", "nhung cfd code snippets", "nhung cau code slippers"
"dung rate code snippets" » "dung dat code snippets", "dung vat code snippets", "dung mat code snippets", "dung rate 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: "((((\"nhung cau code snippets\") OR (\"dung rate code snippets\"))) OR (\"locating bug code snippets\"))~".
• Removing quotes may allow a broader search: (((( nhung cau code snippets ) OR ( dung rate code snippets ))) OR ( locating bug code snippets ))~.
• Adding a wildcard symbol may retrieve word variants: (((("nhung cau code snippets") OR ("dung rate code snippets"))) OR ("locating bug code snippets"))*.