Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"nhan dan oc snippets" » "phan dau oc snippets", "gian dan oc snippets", "nhan tai oc snippets", "nhan dan toc snippets", "nhan dan hoc snippets", "nhan dan soc 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 dan oc 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 dan oc snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( nhan dan oc snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("nhan dan oc snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.