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