Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"cao anh cat snippets" » "cao dang cat snippets", "cao tang cat snippets", "cao bang cat snippets", "cao hanh cat snippets", "cao anh dat snippets", "cao anh ca 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 anh cat 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 anh cat snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( cao anh cat snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("cao anh cat snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.