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