Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"doanh cua cu snippets" » "doanh luan cu snippets", "doanh cua chu snippets", "doanh cua su snippets", "doanh cua co 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: (((("doanh cua cu snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("doanh cua cu snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( doanh cua cu snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("doanh cua cu snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.