Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"cua dan cot snippets" » "cua dang cot snippets", "cua ban cot snippets", "ca dan cot snippets", "cua dan hoat snippets", "cua bang cot snippets", "cua dang bot 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: (((("cua dan cot snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("cua dan cot snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( cua dan cot snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("cua dan cot snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.