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