Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"hinh luat du snippets" » "hanh luat du snippets", "trinh luat du snippets", "chinh luan du snippets", "hinh luat dau snippets", "hinh luat su snippets", "hinh luat tu 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: (((("hinh luat du snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("hinh luat du snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( hinh luat du snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("hinh luat du snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.