Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"vun hoc cung snippets" » "vun hoc ung snippets", "vun hoc cong snippets", "vun hoc dung snippets", "vung hoc cung snippets", "van hoc cung snippets", "vun hoa cung 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: (((("vun hoc cung snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("vun hoc cung snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( vun hoc cung snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("vun hoc cung snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.