Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"hang van luc slippers" » "hoang van luc slippers", "hang va luc slippers", "dang van luc slippers", "hang van loc slippers", "hang van duc slippers", "hang van lu slippers", "hang van luc slippery", "hang van luc 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: (((("hang van luc slippers") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("hang van luc slippers") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( hang van luc slippers ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("hang van luc slippers") or ("python using java snippets"))) or ("locating bug code snippets"))*.