Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"dong min iot snippets" » "dong ming iot snippets", "dong tin iot snippets", "dong mon iot snippets", "dong minh mot snippets", "dong min cost 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 min iot 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 min iot snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dong min iot snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dong min iot snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.