Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"tat hanh noi snippets" » "tat thanh noi snippets", "nhat hanh noi snippets", "dat khanh noi snippets", "tat ha noi snippets", "tat 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: (((("tat 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: (((("tat hanh noi snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( tat hanh noi snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("tat hanh noi snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.