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