Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"lam viet doi snippets" » "lam viec doi snippets", "nam viet doi snippets", "cam viet doi snippets", "lam viet duoi snippets", "lam viet voi snippets", "lam nhiet doi 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: (((("lam viet doi snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("lam viet doi snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( lam viet doi snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("lam viet doi snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.