Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"nao phai con snippets" » "sao phai con snippets", "dao phat con snippets", "cao khai con snippets", "nao phai co snippets", "nao hai con snippets", "nao phau con 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: (((("nao phai con snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("nao phai con snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( nao phai con snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("nao phai con snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.