Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"khoa mong he snippets" » "khoa cong he snippets", "khoa nong he snippets", "khong mong he snippets", "khoa mong hy snippets", "khoa mon he snippets", "khoa mong 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: (((("khoa mong he 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 mong he snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( khoa mong he snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("khoa mong he snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.