Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"van hung map slippers" » "van dung map slippers", "manh hung map slippers", "van duong map slippers", "van nhung mau slippers", "van hung manh slippers", "van huong mai slippers", "van hung map slippery", "van hung map 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: (((("van hung map slippers") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("van hung map slippers") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( van hung map slippers ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("van hung map slippers") or ("python using java snippets"))) or ("locating bug code snippets"))*.