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