Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"cua vu do snippets" » "cua su do snippets", "cua vi do snippets", "cua cu do snippets", "cua vu dao snippets", "cua va do snippets", "cua tu 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: (((("cua vu 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: (((("cua vu do snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( cua vu do snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("cua vu do snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.