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