Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"cha tap toan snippets" » "cha tap doan snippets", "cha tap quan snippets", "cha bai toan snippets", "chua tap toan snippets", "pha tap toan snippets", "cua tap toan 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: (((("cha tap toan snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("cha tap toan snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( cha tap toan snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("cha tap toan snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.