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