Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"can van luc slippers" » "cac van luc slippers", "can ban luc slippers", "tan van luc slippers", "can van loc slippers", "can van duc slippers", "can van lu slippers", "can van luc slippery", "can 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: (((("can 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: (((("can van luc slippers") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( can van luc slippers ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("can van luc slippers") or ("python using java snippets"))) or ("locating bug code snippets"))*.