Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"canh van toi snippets" » "anh van toi snippets", "can van toi snippets", "cach van toi snippets", "canh van tai snippets", "canh van thi snippets", "canh van toan 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: (((("canh van toi snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("canh van toi snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( canh van toi snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("canh van toi snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.