Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"mot phan ca snippets" » "mon phan ca snippets", "mot nhan ca snippets", "mot thanh ca snippets", "mot phan cac snippets", "mot phan cau snippets", "mot phan cam 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 ca 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 ca snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( mot phan ca snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("mot phan ca snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.