Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"tra tinh ca snippets" » "tra trinh ca snippets", "trao tinh ca snippets", "tra linh ca snippets", "tra tinh cao snippets", "tra tinh cua snippets", "tra tinh va 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 tinh ca 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 tinh ca snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( tra tinh ca snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("tra tinh ca snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.