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