Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"thach lam da snippets" » "thanh lam da snippets", "thanh lap da snippets", "hanh lam da snippets", "thach lam dau snippets", "thach lam dao snippets", "thach lam dat 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: (((("thach lam da snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("thach lam da snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( thach lam da snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("thach lam da snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.