Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"bai thi hoc snippets" » "bui thi hoc snippets", "ban thi hoc snippets", "tai thi hoc snippets", "bai thai hoc snippets", "bai tri hoc snippets", "bai thi hoa 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: (((("bai thi 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: (((("bai thi hoc snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( bai thi hoc snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("bai thi hoc snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.