Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"vuc tap toan snippets" » "vuc tap doan snippets", "vuc tap quan snippets", "vuc bai toan snippets", "tuc tap toan snippets", "thuc tap toan snippets", "phuc 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: (((("vuc 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: (((("vuc tap toan snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( vuc tap toan snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("vuc tap toan snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.