Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"cac pha do snippets" » "cach pha do snippets", "cac phan do snippets", "cac nha do snippets", "cac phac do snippets", "cac pham do 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: (((("cac pha do snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("cac pha do snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( cac pha do snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("cac pha do snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.