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