Perhaps you should try some spelling variations:
"khuan kiem e snippets" » "khuan viem e snippets", "phan kiem e snippets", "hoan kiem e snippets", "khuan kiem ke snippets", "khuan diem e snippets"
"python using java snippets" » "python using data 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: (((("khuan kiem e snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("khuan kiem e snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( khuan kiem e snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("khuan kiem e snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.