Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"gui dan hoc snippets" » "gai dan hoc snippets", "nguoi dan hoc snippets", "cuoi dan hoc snippets", "gui van hoc snippets", "gui dan toc snippets", "gui dai 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: (((("gui dan 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: (((("gui dan hoc snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( gui dan hoc snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("gui dan hoc snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.