Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"danh cho loi snippets" » "danh cho lon snippets", "danh cho moi snippets", "danh cho doi snippets", "doanh cho loi snippets", "dan cho loi snippets", "dinh cho loi 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: (((("danh cho loi snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("danh cho loi snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( danh cho loi snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("danh cho loi snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.