Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"lan thon chi snippets" » "lan thom chi snippets", "lan thuong chi snippets", "ban thong chi snippets", "lan ho chi snippets", "lan hop chi snippets", "lan toan chi 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 thon chi 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 thon chi snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( lan thon chi snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("lan thon chi snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.