Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"bat thuy do snippets" » "sat thuc do snippets", "bat hu do snippets", "ha thuy do snippets", "bat thuyet do snippets", "bat thay doi snippets", "bat thuat do 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: (((("bat thuy do snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("bat thuy do snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( bat thuy do snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("bat thuy do snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.