Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"xuat tu cham snippets" » "luat tu cham snippets", "xuat thuc cham snippets", "luat tuc cham snippets", "xuat toc cham snippets", "xuat thi cham 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: (((("xuat tu cham snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("xuat tu cham snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( xuat tu cham snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("xuat tu cham snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.