Perhaps you should try some spelling variations:
"dung dung code slippers" » "duong dung code slippers", "ung dung code slippers", "dung ung code slippers", "dung dung cong slippers", "dung dung co slippers", "dung dung de slippers"
"sieu tri code snippets" » "dieu tri code snippets", "sieu thi code snippets", "lieu tai code snippets", "sieu tri co snippets", "sieu tri cong snippets"
"locating bug code snippets" » "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: (((("sieu tri code snippets") or ("dung dung code slippers"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("sieu tri code snippets") OR ("dung dung code slippers"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( sieu tri code snippets ) or ( dung dung code slippers ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("sieu tri code snippets") or ("dung dung code slippers"))) or ("locating bug code snippets"))*.