Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"mot phan cau snippets" » "mon phan cau snippets", "mot nhan cau snippets", "mot thanh cau snippets", "mot phan dau snippets", "mot phan cac snippets", "mot phan tu 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: (((("mot phan cau snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("mot phan cau snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( mot phan cau snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("mot phan cau snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.