Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"hoi tran chi snippets" » "hoi trac chi snippets", "thoi trang chi snippets", "hoi thanh chi snippets", "hoi trang chi snippets", "hoi tran thi snippets", "hoi 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: (((("hoi 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: (((("hoi tran chi snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( hoi tran chi snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("hoi tran chi snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.