Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"lai dan ve snippets" » "lai van ve snippets", "cai dan ve snippets", "gai dan ve snippets", "lai ban ve snippets", "lai dan va snippets", "lai dan viet 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: (((("lai dan 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: (((("lai dan ve snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( lai dan ve snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("lai dan ve snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.