Perhaps you should try some spelling variations:
"locating bug code slippers" » "locating bug code snippets", "locating bung code slippers", "locating bugs code slippers"
"python using data snippets" » "python using java snippets", "python using sat snippets", "python missing data snippets"
"dong cac dan snippets" » "duong cac dan snippets", "dong bac dan snippets", "dung cac dan 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: (((("dong cac dan snippets") or ("python using data snippets"))) or ("locating bug code slippers"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("dong cac dan snippets") OR ("python using data snippets"))) OR ("locating bug code slippers")).
• Removing quotes may allow a broader search: (((( dong cac dan snippets ) or ( python using data snippets ))) or ( locating bug code slippers )).
• Adding a wildcard symbol may retrieve word variants: (((("dong cac dan snippets") or ("python using data snippets"))) or ("locating bug code slippers"))*.