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