Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"mau su hoc snippets" » "mau sau hoc snippets", "mau sua hoc snippets", "dau su hoc snippets", "mau tu hoc snippets", "mau du hoc snippets", "mau so 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: (((("mau su 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: (((("mau su hoc snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( mau su hoc snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("mau su hoc snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.