Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"ban chi so snippets" » "banh chi so snippets", "bao chi so snippets", "ban thi so snippets", "ban chi o snippets", "ban chi mo snippets", "ban chi su 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 chi so 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 chi so snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( ban chi so snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("ban chi so snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.