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