Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"anh nhan cu snippets" » "danh nhan cu snippets", "doanh nhan cu snippets", "thanh nhan cu snippets", "anh nhan cua snippets", "anh nhan su snippets", "anh nhac cu 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: (((("anh nhan 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: (((("anh nhan cu snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( anh nhan cu snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("anh nhan cu snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.