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