Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"hoc bai cuoc snippets" » "hoc lai cuoc snippets", "hoc bai thuoc snippets", "hoc tai cuc snippets", "hoc dai cuoc snippets", "hoc giai cuoc 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: (((("hoc bai cuoc snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("hoc bai cuoc snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( hoc bai cuoc snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("hoc bai cuoc snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.