Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"dong va noc snippets" » "dung va noc snippets", "dong ha noc snippets", "luong va noc snippets", "dong va nuoc snippets", "dong va hoc snippets", "dong va doc 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: (((("dong va noc snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("dong va noc snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dong va noc snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dong va noc snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.