Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"lon dan cua snippets" » "lan dan cua snippets", "lo dan cua snippets", "loi dan cua snippets", "lon dan ca snippets", "lon ban cua snippets", "lon dai cua 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: (((("lon dan cua snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("lon dan cua snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( lon dan cua snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("lon dan cua snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.