Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"dau lanh ve snippets" » "cau lanh ve snippets", "dat lanh ve snippets", "dau tranh ve snippets", "dau hanh ve snippets", "dau anh ve snippets", "dau lanh va 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 lanh 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 lanh ve snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dau lanh ve snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dau lanh ve snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.