Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"dang ba doc snippets" » "dang bac doc snippets", "dang bai doc snippets", "dang ha doc snippets", "dang va doc snippets", "dang ba don 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: (((("dang ba doc snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("dang ba doc snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dang ba doc snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dang ba doc snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.