Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"lich dai hoi snippets" » "lich thai hoi snippets", "lich danh hoi snippets", "li dai hoi snippets", "lich dai hoc snippets", "lich dai hai snippets", "lich dai moi 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 dai hoi 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 dai hoi snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( lich dai hoi snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("lich dai hoi snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.