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