Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"dong chan du snippets" » "dong chuan du snippets", "jong chan du snippets", "dong chen du snippets", "dong han du snippets", "dong chan dung snippets", "dong phan dau 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 chan du 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 chan du snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dong chan du snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dong chan du snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.