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