Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"nhan ca moi snippets" » "nhan cua moi snippets", "nhan va moi snippets", "nhap ca moi snippets", "nhan cac moi snippets", "nhan can moi 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: (((("nhan ca 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: (((("nhan ca moi snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( nhan ca moi snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("nhan ca moi snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.