Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"nhe hang ca snippets" » "nha hang ca snippets", "nghe thang ca snippets", "nghe hanh ca snippets", "nhe hang va snippets", "nhe nang cao snippets", "nhe hang tai 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: (((("nhe hang 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: (((("nhe hang ca snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( nhe hang ca snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("nhe hang ca snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.