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