Perhaps you should try some spelling variations:
"dung ung code snippets" » "dung trung code snippets", "dung quang code snippets", "dung chung code snippets", "dung ung co snippets", "dung ung code slippers"
"dong trieu code snippets" » "dong trieu code slippers", "cong trieu code snippets", "dong thieu code snippets", "dong trien code snippets", "dong tieu code snippets"
"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: (((("dung ung code snippets") or ("dong trieu code snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("dung ung code snippets") OR ("dong trieu code snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dung ung code snippets ) or ( dong trieu code snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dung ung code snippets") or ("dong trieu code snippets"))) or ("locating bug code snippets"))*.