Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"dong ke cong snippets" » "dong kem cong snippets", "dong ket cong snippets", "dong ky cong snippets", "dong te cong snippets", "dong ve cong snippets", "dong khoe cong 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 ke cong 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 ke cong snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dong ke cong snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dong ke cong snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.