Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"hang nam cau snippets" » "hoang nam cau snippets", "dang nam cau snippets", "hanh nam cau snippets", "hang nam cao snippets", "hang nam cac snippets", "hang nam ca 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: (((("hang nam 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: (((("hang nam cau snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( hang nam cau snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("hang nam cau snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.