Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"lan cau de snippets" » "van cau de snippets", "lan dau de snippets", "ban cau de snippets", "lan cau den snippets", "lan cau do snippets", "lan cuu 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 cau de 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 cau de snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( lan cau de snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("lan cau de snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.