Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"ban noi hoc snippets" » "ban nuoi hoc snippets", "ban moi hoc snippets", "van noi hoc snippets", "ban hoi hoc snippets", "ban voi hoc snippets", "ban noi khoa 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 noi 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 noi hoc snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( ban noi hoc snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("ban noi hoc snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.