Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"nhap bac can snippets" » "nha bac can snippets", "nhanh bac can snippets", "nhat ban can snippets", "nhap ban can snippets", "nhap bat can snippets", "nhap tac can 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: (((("nhap bac can snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("nhap bac can snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( nhap bac can snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("nhap bac can snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.