Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"thao cua don snippets" » "thai cua don snippets", "than cua don snippets", "tho cua don snippets", "thao cua dong snippets", "thao cua dan snippets", "thao cua con 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: (((("thao cua don snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("thao cua don snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( thao cua don snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("thao cua don snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.