Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"lich danh di snippets" » "tich danh di snippets", "minh danh di snippets", "dich anh di snippets", "lich danh du snippets", "lich xanh di snippets", "lich danh dien 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 danh di 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 danh di snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( lich danh di snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("lich danh di snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.