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