Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"thau dan hoc snippets" » "thau dau hoc snippets", "khau dan hoc snippets", "thai danh hoc snippets", "thau van hoc snippets", "thau dan toc snippets", "thau dai 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: (((("thau dan 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: (((("thau dan hoc snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( thau dan hoc snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("thau dan hoc snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.