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