Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"voi cong noi snippets" » "noi cong noi snippets", "moi cong noi snippets", "tai cong noi snippets", "voi cong nhoi snippets", "voi cong goi snippets", "voi cong soi 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: (((("voi cong noi snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("voi cong noi snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( voi cong noi snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("voi cong noi snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.