Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"vun hoa do snippets" » "van hoa do snippets", "vu hoa do snippets", "van hoan do snippets", "vun hoa doi snippets", "vun hoa doc snippets", "vun hoa don 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: (((("vun hoa do snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("vun hoa do snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( vun hoa do snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("vun hoa do snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.