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