Perhaps you should try some spelling variations:
"ngoc dung phi snippets" » "ngoc hung phi snippets", "nguoi dung phi snippets", "hoc dung phi snippets", "ngoc dung phu snippets", "ngoc xung phi snippets", "ngoc dung chi snippets", "ngoc dung phi slippers"
"python using a snippets" » "python using a slippers"
"locating bug code snippets" » "locating bug code slippers", "locating bung code snippets", "locating bugs code snippets", "locating bug core 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: (((("ngoc dung phi snippets") or ("python using a snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("ngoc dung phi snippets") OR ("python using a snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( ngoc dung phi snippets ) or ( python using a snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("ngoc dung phi snippets") or ("python using a snippets"))) or ("locating bug code snippets"))*.