Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"lich van hoe snippets" » "tich van hoe snippets", "lich va hoe snippets", "lich can hoe snippets", "lich van hoa snippets", "lich van hoc snippets", "lich van hieu 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 van hoe 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 van hoe snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( lich van hoe snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("lich van hoe snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.