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