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