Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"khoa di time snippets" » "khoa doi time snippets", "khoan di time snippets", "khoa dr time snippets", "khoa di tim 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: (((("khoa di time snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("khoa di time snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( khoa di time snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("khoa di time snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.