Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"khi noi cau snippets" » "khoi noi cau snippets", "khi doi cau snippets", "khi hoi cau snippets", "khi loi cau snippets", "khi noi dau 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: (((("khi noi 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: (((("khi noi cau snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( khi noi cau snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("khi noi cau snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.