Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"dan trong ca snippets" » "ban trong ca snippets", "dat trong ca snippets", "dao trong ca snippets", "dan trong cac snippets", "dan trong van snippets", "dan trong nha 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: (((("dan trong 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: (((("dan trong ca snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dan trong ca snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dan trong ca snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.