Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"xen dan dong snippets" » "xen van dong snippets", "xen dan dung snippets", "xen dao dong snippets", "nen dan dong snippets", "xe dan dong snippets", "xen ban dong snippets"
"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: (((("xen dan dong snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("xen dan dong snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( xen dan dong snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("xen dan dong snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.