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