Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"moi ban hoc snippets" » "moi bat hoc snippets", "doi ban hoc snippets", "mo ban hoc snippets", "moi bang hoc snippets", "moi van hoc snippets", "moi bai 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: (((("moi ban 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: (((("moi ban hoc snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( moi ban hoc snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("moi ban hoc snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.