Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"tra linh hon snippets" » "tran dinh hon snippets", "tran minh hon snippets", "tran vinh hon snippets", "tra minh hon snippets", "tra linh ho snippets", "tra dinh hong 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: (((("tra linh hon snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("tra linh hon snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( tra linh hon snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("tra linh hon snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.