Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"ket chu chan snippets" » "ket chu han snippets", "ket chua chay snippets", "ket chu van snippets", "ket cau chan snippets", "kem chu chan snippets", "ket thuc chan 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: (((("ket chu chan snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("ket chu chan snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( ket chu chan snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("ket chu chan snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.