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