Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"hoi luat so snippets" » "hoi luan so snippets", "hoc luat so snippets", "thai luat so snippets", "hoi thuat so snippets", "hoi luat bao 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: (((("hoi luat so snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("hoi luat so snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( hoi luat so snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("hoi luat so snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.