Perhaps you should try some spelling variations:
"nhan luc code snippets" » "nang luc code snippets", "nhan lbm code snippets", "nhan luc cong snippets", "nhan luc code slippers"
"dung ha code snippets" » "dung va code snippets", "dung he code snippets", "dung khoa code snippets", "dung ha 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: (((("nhan luc code snippets") or ("dung ha code snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("nhan luc code snippets") OR ("dung ha code snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( nhan luc code snippets ) or ( dung ha code snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("nhan luc code snippets") or ("dung ha code snippets"))) or ("locating bug code snippets"))*.