Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"khoa mau co snippets" » "khoa ma co snippets", "hoa mau co snippets", "khoa phau co snippets", "khoa mai co snippets", "khoa dau co snippets", "khoa au co 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 mau co 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 mau co snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( khoa mau co snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("khoa mau co snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.