Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"dau trong ve snippets" » "dat trong ve snippets", "dao trong ve snippets", "dai trong ve snippets", "dau trong va snippets", "dau trong le snippets", "dau trong de 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: (((("dau trong ve snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("dau trong ve snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dau trong ve snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dau trong ve snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.