Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"duoi cac toi snippets" » "duoc cac toi snippets", "cuoi cac toi snippets", "duoi ca toi snippets", "duoi cac thoi 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: (((("duoi cac 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: (((("duoi cac toi snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( duoi cac toi snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("duoi cac toi snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.