Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"van tu lieu slippers" » "van du lieu slippers", "van tu liem slippers", "van tai lieu slippers", "van thu lieu slippers", "ban tu lieu slippers", "van tu lieu slippery", "van tu lieu 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 tu lieu 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 tu lieu slippers") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( van tu lieu slippers ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("van tu lieu slippers") or ("python using java snippets"))) or ("locating bug code snippets"))*.