Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"lich dan den snippets" » "lich danh den snippets", "lich can den snippets", "lich han den snippets", "lich ban den snippets", "lich van den snippets", "lich dan dung 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: (((("lich dan den snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("lich dan den snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( lich dan den snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("lich dan den snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.