Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"lan dan hoi snippets" » "ban dan hoi snippets", "van dan hoi snippets", "lan dau hoi snippets", "lan dan hoc snippets", "lan dai hoi snippets", "lan dang khoi 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 dan hoi 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 dan hoi snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( lan dan hoi snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("lan dan hoi snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.