Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"mat doan cap snippets" » "mat dan cap snippets", "mot doanh cap snippets", "tap doan cap snippets", "mat doanh cao snippets", "mat dan ca snippets", "mat toan cao 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: (((("mat doan cap snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("mat doan cap snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( mat doan cap snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("mat doan cap snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.