Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"ban tre cau snippets" » "ben tre cau snippets", "ban tro cau snippets", "benh tre cau snippets", "ban te cau snippets", "ban tra cau snippets", "ban tre can 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 tre cau 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 tre cau snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( ban tre cau snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("ban tre cau snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.