Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"trinh nha ve snippets" » "trinh phan ve snippets", "trinh chat ve snippets", "trinh chao ve snippets", "trinh nhat ve snippets", "trinh nhan ve snippets", "trinh nha va 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: (((("trinh nha 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: (((("trinh nha ve snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( trinh nha ve snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("trinh nha ve snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.