Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"cao kha cau snippets" » "cao khai cau snippets", "cao khoa cau snippets", "co kha cau snippets", "cao pha cau snippets", "cao khac hau snippets", "cao phan cau 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 kha cau 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 kha cau snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( cao kha cau snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("cao kha cau snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.