Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"chi khang cu snippets" » "chi chang cu snippets", "chon khang cu snippets", "chi nhanh cu snippets", "chi khung cua snippets", "chi thang cua snippets", "chi chung cu 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: (((("chi khang cu snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("chi khang cu snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( chi khang cu snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("chi khang cu snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.