Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"len hoa hoi snippets" » "yen hoa hoi snippets", "dien hoa hoi snippets", "tien hoa hoi snippets", "len khoa hoi snippets", "len hoa hoc snippets", "len hoa doi 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: (((("len hoa hoi snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("len hoa hoi snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( len hoa hoi snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("len hoa hoi snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.