Perhaps you should try some spelling variations:
"dung nhung code snippets" » "dung chung code snippets", "dung nhan code snippets", "dung trung code snippets", "dung nhung cong snippets", "dung nhung con snippets", "dung nhung code slippers"
"quang anh code snippets" » "quang hanh code snippets", "quang manh code snippets", "quang thanh code snippets", "quang anh co snippets", "quang anh cong snippets", "quang anh code slippers"
"locating bug code snippets" » "locating bug code slippers", "locating bung code snippets", "locating bugs code snippets"

Try widening your search to All Fields.

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: (((("quang anh code snippets") or ("dung nhung code snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("quang anh code snippets") OR ("dung nhung code snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( quang anh code snippets ) or ( dung nhung code snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("quang anh code snippets") or ("dung nhung code snippets"))) or ("locating bug code snippets"))*.