Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"muc cho hoc snippets" » "luc cho hoc snippets", "nuoc cho hoc snippets", "muc chat hoc snippets", "muc co hoc snippets", "muc khoa 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: (((("muc cho 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: (((("muc cho hoc snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( muc cho hoc snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("muc cho hoc snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.