Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"dong vat cha snippets" » "dong va cha snippets", "dong von cha snippets", "dong ha cha snippets", "dong vat chat snippets", "dong vat cua snippets", "dong vat khoa 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 vat cha 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 vat cha snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dong vat cha snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dong vat cha snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.