Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"doan vu chi snippets" » "doan va chi snippets", "doan vi chi snippets", "doan tu chi snippets", "doan vu thi snippets", "doan cu chi 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: (((("doan vu 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: (((("doan vu chi snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( doan vu chi snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("doan vu chi snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.