Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"tap khoa can snippets" » "tap hoa can snippets", "lap khoa can snippets", "phap khoa can snippets", "tap khoa cam snippets", "tap khoa cap snippets", "tap khoi can 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: (((("tap khoa can snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("tap khoa can snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( tap khoa can snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("tap khoa can snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.