Perhaps you should try some spelling variations:
"dung luan code snippets" » "dung luan cong snippets", "dung luan che snippets", "dung luan de snippets", "dung luan code slippers"
"trong cho code snippets" » "trong tho code snippets", "trong co code snippets", "rong cho code snippets", "trong cho cong snippets", "trong cfd code snippets", "trong cho con snippets", "trong cho 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: "((((\"dung luan code snippets\") OR (\"trong cho code snippets\"))) OR (\"locating bug code snippets\"))~".
• Removing quotes may allow a broader search: (((( dung luan code snippets ) OR ( trong cho code snippets ))) OR ( locating bug code snippets ))~.
• Adding a wildcard symbol may retrieve word variants: (((("dung luan code snippets") OR ("trong cho code snippets"))) OR ("locating bug code snippets"))*.