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