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