Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"lich dinh du snippets" » "lich sinh du snippets", "dich dinh du snippets", "lich danh du snippets", "lich dinh duc snippets", "lich dinh cu snippets", "lich dinh tu 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 dinh du 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 dinh du snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( lich dinh du snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("lich dinh du snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.