Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"luan dau chi snippets" » "luat dau chi snippets", "luan dac chi snippets", "lan dau chi snippets", "luan dau khi snippets", "luan du chi snippets", "luan dau cuoi 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: (((("luan dau chi snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("luan dau chi snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( luan dau chi snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("luan dau chi snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.