Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"thach lam co snippets" » "thanh lam co snippets", "thanh lap co snippets", "hanh lam co snippets", "thach nam co 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 co 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 co snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( thach lam co snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("thach lam co snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.