Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"cao xua cua snippets" » "cao xuan cua snippets", "co xua cua snippets", "dao xuan cua snippets", "cao xuat cua snippets", "cao qua cua snippets", "cao lua cua 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: (((("cao xua cua snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("cao xua cua snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( cao xua cua snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("cao xua cua snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.