Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"gai dan ve snippets" » "cai dan ve snippets", "hai dan ve snippets", "giai doan ve snippets", "gai ban ve snippets", "gai dan va snippets", "gai dan viet 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: (((("gai dan ve snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("gai dan ve snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( gai dan ve snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("gai dan ve snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.