Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"cho phat so snippets" » "cho phan so snippets", "co phan so snippets", "dao phat so snippets", "cho nhat so snippets", "cho phap so snippets", "cho thuat so 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: (((("cho phat 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: (((("cho phat so snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( cho phat so snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("cho phat so snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.