Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"nhat tan ca snippets" » "nhat ban ca snippets", "nhat trang ca snippets", "nhat hanh ca snippets", "nhat tan cua snippets", "nhat tang ca snippets", "nhat dan ca 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: (((("nhat tan ca snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("nhat tan ca snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( nhat tan ca snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("nhat tan ca snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.