Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"hoc tran chi snippets" » "hoc tan chi snippets", "hoc tren chi snippets", "boc tran chi snippets", "hoc trang chi snippets", "hoc tran thi snippets", "hoc toan chi 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: (((("hoc tran chi snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("hoc tran chi snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( hoc tran chi snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("hoc tran chi snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.