Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"anh co hop snippets" » "anh so hop snippets", "danh cho hop snippets", "nganh co hop snippets", "anh co hoc snippets", "anh co hoi snippets", "anh co ho 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 hop 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 hop snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( anh co hop snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("anh co hop snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.