Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"thue dat cho snippets" » "thue da cho snippets", "thue luat cho snippets", "thue xuat cho snippets", "thue dac cho snippets", "thue day cho snippets", "thue dan cho 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: (((("thue dat cho snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("thue dat cho snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( thue dat cho snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("thue dat cho snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.