Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"tra chat can snippets" » "tran chau can snippets", "tran nhat can snippets", "hoa chat can snippets", "tra chat ban snippets", "tra chat ran snippets", "tra chat cam 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: (((("python using java snippets") or ("tra chat can snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("python using java snippets") OR ("tra chat can snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( python using java snippets ) or ( tra chat can snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("python using java snippets") or ("tra chat can snippets"))) or ("locating bug code snippets"))*.