Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"lan dung di snippets" » "van dung di snippets", "dan dung di snippets", "lan hung di snippets", "lan dung doi snippets", "lan dung dia snippets", "lan dung de 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 dung di 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 dung di snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( lan dung di snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("lan dung di snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.