Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"lan nhung ca snippets" » "lan hung ca snippets", "ban nhung ca snippets", "la nhung ca snippets", "lan nhung cau snippets", "lan nhung cam snippets", "lan nhung cay 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: (((("lan nhung 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: (((("lan nhung ca snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( lan nhung ca snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("lan nhung ca snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.