Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"khoa dung ca snippets" » "hoc dung ca snippets", "khoa cong ca snippets", "khoa dung cua snippets", "khoa dung cac snippets", "khoa dung cam 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: (((("khoa dung ca snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("khoa dung ca snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( khoa dung ca snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("khoa dung ca snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.