Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"bui sang do snippets" » "buoi sang do snippets", "bua sang do snippets", "bui quang do snippets", "bui dang do snippets", "bui tang do snippets", "bui sang tao 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: (((("bui sang 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: (((("bui sang do snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( bui sang do snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("bui sang do snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.