Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"can tinh hoc snippets" » "canh tinh hoc snippets", "ban tinh hoc snippets", "cac tinh hoc snippets", "can sinh hoc snippets", "can tin hoc snippets", "can hinh hoc 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: (((("can tinh hoc snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("can tinh hoc snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( can tinh hoc snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("can tinh hoc snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.