Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"thu nhap tom snippets" » "thu ha tom snippets", "khu nha tom snippets", "thu nhap mon snippets", "thu nhap wto snippets", "thu nam tom 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: (((("thu nhap tom snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("thu nhap tom snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( thu nhap tom snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("thu nhap tom snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.