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