Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"khu cong cay snippets" » "thu cong cay snippets", "thi cong cay snippets", "cuu cong cay snippets", "khu cong xay snippets", "khu cong cau snippets", "khu cong 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: (((("khu cong cay snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("khu cong cay snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( khu cong cay snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("khu cong cay snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.