Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"thu danh cau snippets" » "thu canh cau snippets", "thu anh cau snippets", "thu dang cau snippets", "thu danh dau snippets", "thu danh ca snippets", "thu danh hau 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 danh 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: (((("thu danh cau snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( thu danh cau snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("thu danh cau snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.