Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"co phan tan slippers" » "co phan van slippers", "co phan tap slippers", "co phan lan slippers", "co phan tan slippery", "co phan tan grippers"
"locating bug code snippets" » "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: (((("co phan tan slippers") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("co phan tan slippers") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( co phan tan slippers ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("co phan tan slippers") or ("python using java snippets"))) or ("locating bug code snippets"))*.