Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"khoe ma cau snippets" » "khoa ma cau snippets", "khoe va cau snippets", "khoe moi cau snippets", "khoe mau cau snippets", "khoe da cau 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: (((("khoe ma 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: (((("khoe ma cau snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( khoe ma cau snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("khoe ma cau snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.