Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"lich dang do snippets" » "lich danh do snippets", "tich nang do snippets", "binh dang do snippets", "lich nang doc snippets", "lich dung doi snippets", "lich dang duc 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 dang do 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 dang do snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( lich dang do snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("lich dang do snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.