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