Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"nha co cua snippets" » "nha cao cua snippets", "nhan co cua snippets", "nhat co cua snippets", "nha con cua snippets", "nha ca cua snippets", "nha cong 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: (((("nha co 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: (((("nha co cua snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( nha co cua snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("nha co cua snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.