Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"bua cua moi snippets" » "qua cua moi snippets", "lua cua moi snippets", "xua cua moi snippets", "bua cua mot snippets", "bua cua hoi 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: (((("bua cua moi snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("bua cua moi snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( bua cua moi snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("bua cua moi snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.