Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"coc via cua snippets" » "coc va cua snippets", "coca vila cua snippets", "buoc via cua snippets", "coc gia cua snippets", "coc gian cua snippets", "coc giau cua 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: (((("coc via cua snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("coc via cua snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( coc via cua snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("coc via cua snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.