Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"khu phu cau snippets" » "khu phuc cau snippets", "chau phu cau snippets", "thuc phu cau snippets", "khu nhu cau snippets", "khu pha cau snippets", "khu phu can 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 phu cau 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 phu cau snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( khu phu cau snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("khu phu cau snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.