Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"ket gap cac snippets" » "ket nap cac snippets", "viet gap cac snippets", "ket tap cac snippets", "ket gian cac snippets", "ket giai cac 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 gap cac 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 gap cac snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( ket gap cac snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("ket gap cac snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.