Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"cho tu doan snippets" » "cho du doan snippets", "cho tu dan snippets", "cho tap doan snippets", "choi tu doan snippets", "chon tu doan snippets", "cho cu doan 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: (((("cho tu doan snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("cho tu doan snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( cho tu doan snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("cho tu doan snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.