Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"benh luan du snippets" » "binh luan du snippets", "benh nhan du snippets", "benh lao du snippets", "benh xuan du snippets", "benh luat du snippets", "benh luan de 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: (((("benh luan du snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("benh luan du snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( benh luan du snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("benh luan du snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.