Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"xac hanh noi snippets" » "sac hanh noi snippets", "bac thanh noi snippets", "cac thanh noi snippets", "xac ha noi snippets", "xac hanh vi 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: (((("xac hanh noi snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("xac hanh noi snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( xac hanh noi snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("xac hanh noi snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.